Statewide Landslide Information Database for Oregon (SLIDO)

Note that the SLIDO Source Data section has been updated to include SLIDO 4.5 sources.

SLIDO Background and Data Limitations

Project Purpose

The Statewide Landslide Information Database for Oregon (SLIDO) project was created to improve our understanding of the landslide hazard in Oregon and to provide a statewide base level of landslide data. The original studies vary widely in scale, scope, and focus, which is reflected in a wide range in the accuracy, detail, and completeness with which landslides are mapped.

Approach

SLIDO-4.x contains extensive updates to the landslide inventory dataset (deposits, scarp flanks, and scarps) and historic landslide points. These updates reflect the most recent published studies as well as contributions from other Oregon government agencies. However, the major change from release 3.4 to 4.x is the addition of landslide susceptibility data. The geodatabase structure was modified to accommodate these new data (see Appendix A).

New Landslide Susceptibility Datasets

A landslide susceptibility map shows modeled data that predicts the potential of a region or area to have landslides. SLIDO 4.0 includes three kinds of landslide susceptibility data:

Detailed shallow landslide susceptibility. These data model the potential for landslides that involve movement of a relatively thin layer of slope material and have a shallow failure plane (Figure 9A). These are fine-grained, large-scale maps (1:8,000) and are thus intended for use at a local scale. This dataset is in raster format at a 3-foot (1-meter) resolution.
Detailed deep landslide susceptibility. These data model the potential for landslides that involve movement of a thicker layer of slope material (Figure 9B). These are fine-grained, large-scale maps (1:8,000) and are thus intended for use at a local scale. This dataset is in polygon feature class format.
Statewide landslide susceptibility overview map. This map is a coarse-grained, small-scale (1:500,000) map of the entire state of Oregon and is for use at a regional scale (Figure 9C). This dataset is in raster format at a 32-foot (10-meter) resolution.

Note that detailed shallow and deep landslide susceptibility data do not cover the entire state; an index map for the detailed datasets is included in the geodatabase as a feature class (Figure 10).

Limitations

We created SLIDO-4.x by compiling the best landslide inventory data available for Oregon. However, this product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. Users should review or consult the primary data and information sources to ascertain the usability of the SLIDO-4.x data. This publication cannot substitute for site-specific investigations by qualified practitioners. Site-specific data may give results that differ from SLIDO-4.x. Several limitations are worth noting:

Although every effort was made to ensure that database entries were accurate and complete, no effort was made to verify the original data on which the compilation is based. Geologic data in the less populated eastern portions of the state were particularly limited in terms of scale; for example, the 1:500,000-scale geologic map of the state was used in some locations.
The database is from original sources that vary in scale, original purpose of mapping, available tools at the time of mapping, and background and interpretation by original mapper. These factors all affect the level of detail and accuracy of landslide data.
DOGAMI neither collected nor analyzed any new data for SLIDO-4.x.

Potential Uses of the Data

The primary purpose of SLIDO is to provide the best currently available mapping of landslide features throughout Oregon. The database should serve as useful tool for differentiating broad areas of higher and lower hazards and as a starting point for more detailed study. This spatial information is basic to emergency management and land-use applications, including:

Identify vulnerable areas that may require planning considerations
Estimate potential losses from specific hazard events (before or after a disaster hits)
Decide how to allocate resources for most effective and efficient response and recovery
Prioritize mitigation measures that need to be implemented to reduce future losses

Disclaimer

Although the data have been processed successfully on a computer system at the Oregon Department of Geology and Mineral Industries (DOGAMI), no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. We also urge you to pay careful attention to the contents of the metadata with these data and to the compilation process and limitations described therein. The Oregon Department of Geology and Mineral Industries shall not be held liable for improper or incorrect use of the data described and/or contained herein. Data are not intended for site-specific investigations

The SLIDO project is a work in progress. DOGAMIreserves the right to update data on this web site without notification as new information becomes available.

SLIDO-4.x Source Data

Each plate or figure counts as one source. You can click on a landslide point, landslide polygon, or source map on the map to see the Reference ID of the source data used at any particular location. DOGAMI source publications are available for viewing online and at state university libraries.

This Source Data list is also available as a web service.

Burns, W. J., Coe, J. A., Sener Kaya, B., Ma, L., 2010, Analysis of elevation changes detected from multi-temporal LiDAR surveys in forested landslide terrain in western Oregon: Environmental and Engineering Geoscience, v. XVI, no. 4, p. 315?341.

Reference Identification Code	Original Mapping Scale	Reference
AchJA1991	1:24,000	Ach, J. A., and Bateson, J. T., 1991, Geologic map of the Sand Hollow quadrangle, Crook County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies MF-2156, map scale 1:24,000.
AllaJC2001	1:25,000	Allan, J. C., and Priest, G. R., 2001, Evaluation of coastal erosion hazard zones along dune and bluff backed shorelines in Tillamook County, Oregon: Cascade Head to Cape Falcon: Oregon Department of Geology and Mineral Industries Open-File Report O-01-03, scale 1:24,000.
AlleJE1988	1:24,000	Allen, J. E., 1988, Geologic hazards in the Columbia River Gorge National Scenic Area: U.S. Department of Agriculture Forest Service, Pacific Northwest Region, scale 1:24,000.
AndeJL1978	1:24,000	Anderson, J. L., 1978, The stratigraphy and structure of the Columbia River Basalt in the Clackamas River drainage: Portland, Oreg., Portland State University, thesis, scale 1:24,000.
AshlRP1966	1:21,100	Ashley, R. P., 1966, Metamorphic petrology and structure of the Burnt River Canyon area, northeastern Oregon: Palo Alto, Calif., Stanford University, dissertation, scale 1:21,100.
BacoCRUnpub	1:24,000	Bacon, C. R., unpublished data, Geologic map of Mount Mazama and Crater Lake caldera, Oregon: Reston, Va., U.S. Geological Survey, scale 1:24,000. [Available as Ramsey, D. W., Dutton, D. R., and Bacon, C. R., 2008, Database for the geologic map of Mount Mazama and Crater Lake Caldera, Oregon in Bacon, Charles R., Geologic map of Mount Mazama and Crater Lake Caldera, Oregon: U.S. Geological Survey Scientific Investigations Map 2832, 4 sheets, scale 1:24,000, 45 p. (CD-ROM)]
BaldEM1952	1:48,000	Baldwin, E. M., and Roberts, A. E., 1952, Geology of the Spirit Mountain quadrangle, northwestern Oregon: Washington, D.C., U.S. Geological Survey Oil and Gas Investigation Map OM-129, scale 1:48,000.
BaldEM1955	1:62,500	Baldwin, E. M., 1955, Geology of the Mary?s Peak and Alsea quadrangles, Oregon: Washington, D.C., U.S. Geological Survey Oil and Gas Investigation Map OM-162, scale 1:62,500.
BaldEM1956	1:62,500	Baldwin, E. M., 1956, Geologic map of the lower Siuslaw River area, Oregon: Washington, D.C., U.S. Geological Survey Oil and Gas Investigation Map OM-86, scale 1:62,500.
BaldEM1961	1:62,500	Baldwin, E. M., 1961, Geologic map of the Lower Umpqua River area, Oregon: Washington, D.C., U.S. Geological Survey Oil and Gas Investigation Map OM-204, scale 1:62,500.
BaldEM1969	1:48,000	Baldwin, E. M., 1969, Geologic map of the Myrtle Point area, Coos County, Oregon: Washington, D.C., U.S. Geological Survey Miscellaneous Field Studies Map MF-302, scale 1:48,000.
BaldEM1973	1:62,500	Baldwin, E. M., Beaulieu, J. D., Ramp, L., Gray, J. J., Newton, V. C., and Mason, R. S., 1973, Geology and mineral resources of Coos County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 80, 82 p., scale 1:62,500.
BaraP1991	1:24,000	Bararras, P., and Wickwire, P., 1991, Landslides in Mount Hood National Forest: U.S. Department of Agriculture Forest Service, Pacific NW Region, scale 1:24,000.
BarnCG1978	1:31,250	Barnes, C. G., 1978, Geology of the Mt. Bailey area, Douglas County, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:31,250.
BeauJD1973hazards	1:62,500	Beaulieu, J. D., 1973, Environmental geology of inland Tillamook and Clatsop Counties: Oregon Department of Geology and Mineral Industries Bulletin 79, 65 p., scale 1:62,500.
BeauJD1974ahazards	1:31,680	Beaulieu, J. D., Hughes, P. D., and Mathiot, K., 1974, Environmental geology of western Linn County: Oregon Department of Geology and Mineral Industries Bulletin 84, 117 p., scale 1:31,680.
BeauJD1974bhazards	1:62,500	Beaulieu, J. D., 1974, Geologic hazards of the Bull Run watershed, Multnomah and Clackamas Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 82, 77 p., scale 1:62,500.
BeauJD1975hazards	1:62,500	Beaulieu, J. D., and Hughes, P. W., 1975, Environmental geology of western Coos and Douglas Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 87, 148 p., scale 1:62,500.
BeauJD1976		Beaulieu, J.D., 1976, Geologic Hazards in Oregon, The Ore Bin, Oregon Department of Geology and Mineral Industries, May 1976, vol 38, no 5, 20 p.
BeauJD1976hazards	1:62,500	Beaulieu, J. D., and Hughes, P. W., 1976, Land-use geology of western Curry County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 90, 148 p., scale 1:62,500.
BeauJD1977ahazards	1:62,500	Beaulieu, J. D., and Hughes, P. W., 1977, Land use geology of central Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 94, 87 p., scale 1:62,500.
BeauJD1977bhazards	1:62,500	Beaulieu, J. D., 1977, Geologic hazards of parts of northern Hood River, Wasco, and Sherman Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 91, 95 p., scale 1:62,500.
BelaJL1981	1:24,000	Bela, J. L., 1981, Geology of the Rickreall, Salem West, Monmouth, and Sidney 7 1/2 minute quadrangles, Marion, Polk, and Linn Counties, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-18, scale 1:24,000.
BelaJL1982	1:250,000	Bela, J. L., 1982, Geologic and neotectonic evaluation of north-central Oregon: Geologic compilation map of the The Dalles 1 degree by 2 degree quadrangle, Oregon and Washington: Oregon Department of Geology and Mineral Industries Geologic Map GMS-27, scale 1:250,000.
BestEA2002Figure3	1:34,250	Bestland, E. A., Retallack, G. J., Rice, A. E., and Mindszenty, A., 2002, Geologic framework of the Clarno Unit, John Day Fossil Beds National Monument, central Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-02-03, 39 p., Figure 3, scale 1:34,250.
BingNJ1984	1:24,000	Bingert, N. J., 1984, Geology of the northeast one-quarter of the Prineville quadrangle, northcentral Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
BlacGL1987	1:62,500	Black, G. L., 1987, Woller, N. M., and Ferns, M. L., 1987, Geologic map of the Crescent Mountain area, Linn County, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-47, scale 1:62,500.
BlacGL1995	1:24,000	Black, G. L., and Madin, I. P., 1995, Geologic map of the Coos Bay quadrangle, Coos County, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-GMS 97, scale 1:24,000.
BlacGL2000	1:48,000	Black, G. L., 2000, Eugene earthquake hazards: Oregon Department of Geology and Mineral Industries Interpretive Map IMS-14, scale 1:48,000.
BrikTH1983	1:62,500	Brikowski, T. H., 1983, Geology and petrology of Gearhart Mountain: a study of calc-alkaline volcanism east of the Cascades in Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:62,500.
BroeL1995	1:24,000	Broeker, L., 1995, Geomorphology of the Umpqua National Forest, U.S. Department of Agriculture Forest Service, Pacific NW Region, scale 1:24,000.
BrooHC1976	1:250,000	Brooks, H. C., McIntyre, J. R., and Walker, G. W., 1976, Geology of the Oregon part of the Baker 1 degree by 2 degree quadrangle: Oregon Department of Geology and Mineral Industries Geologic Map GMS-7, scale 1:250,000.
BrooHC1977a	1:24,000	Brooks, H. C., and McIntyre, J. R., 1977, Preliminary geologic map of the Bowen Valley quadrangle, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-78-3, scale 1:24,000.
BrooHC1977cplateA	1:24,000	Brooks, H. C., Bowen, R. G., Hull, D. A., and Hammitt, R. W., 1977, Preliminary geologic map of the Sawtooth Ridge quadrangle, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-77-1, Plate A, scale 1:24,000.
BrooHC1977cplateB	1:24,000	Brooks, H. C., and Bowen, R. G., 1977, Preliminary geologic map of the Keating NW quadrangle, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-77-1, Plate B, scale 1:24,000.
BrooHC1979a	1:62,500	Brooks, H. C., 1979, Geologic map of Huntington and part of Olds Ferry quadrangles, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS- 13, scale 1:62,500.
BrooHC1979b	1:62,500	Brooks, H. C., 1979, Geologic map of the Oregon part of the Mineral quadrangle: Oregon Department of Geology and Mineral Industries Geologic Map GMS-12, scale 1:62,500.
BrooHC1979c	1:24,000	Brooks, H. C., Ferns, M. L., Nusbaum, R. W., and Kovich, P. M., 1979, Geologic map of the Rastus Mountain quadrangle, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-79-7, scale 1:24,000.
BrooHC1982a	1:24,000	Brooks, H. C., Ferns, M. L., and Mullen, E. D., 1982, Geology and gold deposits map of the Granite quadrangle, Grant County, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-25, scale 1:24,000.
BrooHC1982b	1:24,000	Brooks, H. C., Ferns, M. L., Coward, R. I., Paul, E. K., and Nunlist, M., 1982, Geology and gold deposits of the Bourne quadrangle, Baker and Grant Counties, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-19, scale 1:24,000.
BrooHC1983	1:62,500	Brooks, H. C., Ferns, M. L., Wheeler, G. R., and Avery, D. G., 1983, Geology and gold deposits map of the northeast quarter of the Bates quadrangle, Baker and Grant Counties, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS- 29, scale 1:62,500.
BrooHC1984	1:62,500	Brooks, H. C., Ferns, M. L., and Avery, D. G., 1984, Geology and gold deposits map of the southwest quarter of the Bates quadrangle, Grant County, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-35, scale 1:62,500.
BrooHCUnpubB	1:24,000	Brooks, H. C., unpublished data, Geologic and mineral resources map of the Mormon Basin quadrangle, Baker and Malheur Counties, Oregon: Baker City, Oreg., Oregon Department of Geology and Mineral Industries, vector digital data, scale 1:24,000.
BrowCE1966a	1:62,500	Brown, C. E., and Thayer, T. P., 1966, Geologic map of the Mount Vernon quadrangle, Grant County, Oregon: Washington, D.C., U.S. Geological Survey Geologic Quadrangle Map GQ-548, scale 1:62,500.
BrowCE1966b	1:250,000	Brown, C. E., and Thayer, T. P., 1966, Geologic map of the Canyon City quadrangle, northeastern Oregon: Washington, D.C., U.S. Geological Survey Miscellaneous Investigations Map 447, scale 1:250,000.
BrowCE1977	1:62,500	Brown, C. E., and Thayer, T. P., 1977, Geologic map of pre-Tertiary rocks in the eastern Aldrich Mountains and adjacent areas to the south, Grant County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigation Map 1021, scale 1:62,500.
BrowDE1980aplate1	1:62,500	Brown, D. E., McLean, G. D., and Black, G. L., 1980, Preliminary geology and geothermal resource potential of the southern Harney Basin, Oregon; Portland, Oreg., Oregon Department of Geology and Mineral Industries Open-File Report O-80-7, Plate 1, scale 1:62,500.
BrowDE1980aplate2	1:62,500	Brown, D. E., McLean, G. D., and Black, G. L., 1980, Preliminary geology and geothermal resource potential of the southern Harney Basin, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-80-7, Plate 2, scale 1:62,500.
BrowDE1980aplate3	1:62,500	Brown, D. E., McLean, G.D., and Black, G.L., 1980, Preliminary geology and geothermal resource potential of the southern Harney Basin, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-80-7, Plate 3, scale 1:62,500.
BrowDE1980aplate4	1:62,500	Brown, D. E., McLean, G. D., and Black, G. L., 1980, Preliminary geology and geothermal resource potential of the southern Harney Basin, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-80-7, Plate 4, scale 1:62,500.
BrowDE1980b	1:62,500	Brown, D. E., McLean, G.D., and Black, G.L., 1980, Preliminary geology and geothermal resource potential of the northern Harney Basin, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-80-6, scale 1:62,500.
BrowDE1980c	1:62,500	Brown, D. E., McLean, G. D., Priest, G. R., Woller, N. M., and Black, G. L., 1980, Reconnaissance geologic map of the Belknap-Foley Area, Oregon, Preliminary geology and geothermal resource potential of the Belknap-Foley Area, Oregon: Portland, Oreg., Oregon Department of Geology and Mineral Industries, Open-File Report O-80-2, scale 1:62,500.
BrowDE1980d	1:62,500	Brown, D. E., McLean, G. D., Woller, N. M., and Black, G. L., 1980, Reconnaissance geologic map of the Willamette Pass Area, Oregon, Preliminary geology and geothermal resource potential of the Willamette Pass Area, Oregon: Portland, Oreg., Oregon Department of Geology and Mineral Industries, Open-File Report O-80-3., scale 1:62,500.
BrowDE1982	1:24,000	Brown, D. E., 1982, Map showing geology and geothermal resources of the southern half of the Burns 15? quadrangle, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-20, scale 1:24,000.
BrowME1982	1:24,000	Brownfield, M. E., 1982, Geologic map of the Sheridan Quad, Polk and Yamhill Counties, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-23, scale 1:24,000.
BurnSF1997	1:100,000	Burns, S., Growney, L., Brodersen, B., Yeats, R. S., and Popowski, T. A., 1997, Map showing faults, bedrock geology, and sediment thickness of the western half of the Oregon City 1;100,000 quadrangle, Washington, Multnomah, and Marion Counties: Oregon Department of Geology and Mineral Industries Interpretive Map IMS-4, scale 100,000.
BurnWJ2009b	1:8,000	Burns, W. J., 2009, Landslide inventory maps for the Canby quadrangle, Clackamas, Marion, and Washington Counties: Oregon Department of Geology and Mineral Industries Interpretive Map 29, scale 1:8,000.
BurnWJ2009c	1:8,00	Burns, W. J. and Mickelson, K., 2009, Regional landslide susceptibility maps of the western half of the Linnton quadrangle, Washington and Multnomah Counties, Oregon: Oregon Department of Geology and Mineral Industries, technical report to Washington County, Oreg., 25 p.
BurnWJ2010a	1:8,000	Burns, W. J., and Mickelson, K. A., 2010, Landslide inventory maps of the Oregon City quadrangle, Clackamas County, Oregon: Oregon Department of Geology and Mineral Industries Interpretive Map 30, scale 1:8,000.
BurnWJ2010b	1:8,000	Burns, W. J., and Mickelson, K. A., 2010, Landslide inventory maps of the Astoria quadrangle, Clatsop County, Oregon: Oregon Department of Geology and Mineral Industries Interpretive Map 31, scale 1:8,000.
BurnWJ2010c	1:8,000	Burns, W. J., and Duplantis, S., 2010, Overview of the landslide inventory of the Lake Oswego quadrangle, Clackamas, Multnomah, and Washington Counties, Oregon: Oregon Department of Geology and Mineral Industries Interpretive Map 32, scale 1:8,000.
BurnWJ2010d	1:8,000	Burns, W. J., and Duplantis, S., 2010, Landslide inventory map of the northeast quarter of the Portland quadrangle, Multnomah County, Oregon: Oregon Department of Geology and Mineral Industries Interpretive Map 33, scale 1:8,000.
BurnWJ2010e		Burns, W. J., Coe, J. A., Sener Kaya, B., Ma, L., 2010, Analysis of elevation changes detected from multi-temporal LiDAR surveys in forested landslide terrain in western Oregon: Environmental and Engineering Geoscience, v. XVI, no. 4, p. 315–341.
BurnWJ2011	1:10,000	Burns, W. J., Madin, I. P., Mickelson, K. A., and Williams, K. J., 2011, Partial landslide inventory of the western portion of Coos County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-11-01, scale 1:10,000.
BurnWJ2011b	1:8,000	Burns, W. J., Madin, I. P., Mickelson, K. A., and Drazba, M. C., 2011, Landslide inventory maps of the Linnton quadrangle, Multnomah and Washington counties, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 35, 4 pls., scale 1:8,000, 1 pl., 1:16,000, geodatabase data scale 1:8,000.
BurnWJ2011c	1:8,000	Burns, W. J., Madin, I. P., and Mickelson, K. A., 2011, Landslide inventory maps of the Beaverton quadrangle, Washington County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 34, 4 pls., scale 1:8,000, 1 pl., 1:16,000, geodatabase data scale 1:8,000.
BurnWJ2011d	1:8,000	Burns, W. J., Hughes, K. L. B., Olson, K. V., McClaughry, J. D., Mickelson, K. A., Coe, D. E., English, J. T., Roberts, J. T., Lyles Smith, R. R., and Madin, I. P., 2011, Multi-hazard and risk study for the Mount Hood region, Multnomah, Clackamas, and Hood River Counties, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-11-16, 179 p., 7 pls., plate scale 1:72,000, geodatabase scale 1:8,000.
BurnWJ2012a	1:8,000	Burns, W. J., Duplantis, S., Jones, C. B., and English, J. T., 2012, Lidar data and landslide inventory maps of the North Fork Siuslaw River and Big Elk Creek watersheds, Lane, Lincoln, and Benton Counties, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-12-07, 15 p., 2 pls., plate scale 1:24,000, geodatabase scale 1:8,000.
BurnWJ2012b	1:8,000	Burns, W. J., and Mickelson, K. A., 2012, Regional hazard maps of the City of Silverton, Marion County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-12-05, 21 p., 3 pls., scale 1:8,000.
BurnWJ2012c	1:8,000	Burns, W. J., Madin, I. P., Mickelson, K. A., and Duplantis, S., 2012, Landslide inventory maps of the Estacada quadrangle, Clackamas County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 51, 4 pls., scale 1:8,000.
BurnWJ2012d	1:8,000	Burns, W. J., Duplantis, S., Mickelson, K. A., and Madin, I. P., 2012, Landslide inventory maps of the Redland quadrangle, Clackamas County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 51, 4 pls., scale 1:8000.
BurnWJ2012e	1:8,000	Burns, W. J., Mickelson, K. A., and Duplantis, S., 2012, Landslide inventory maps of the Sherwood quadrangle, Clackamas, Marion, Washington, and Yamhill Counties, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 50, 4 pls., scale 1:8,000.
BurnWJ2012f	1:8,000	Burns, W. J., Madin, I. P., Duplantis, S., Mickelson, K. A., and Jones, C. B., 2012, Landslide inventory maps of the Damascus quadrangle, Clackamas and Multnomah Counties, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 49, 4 pls., scale 1:8,000.
BurnWJ2012g	1:8,000	Burns, W. J., Mickelson, K. A., Duplantis, S., and Madin, I. P., 2012, Landslide inventory maps of the Gladstone quadrangle, Clackamas and Multnomah Counties, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 48, 4 pls., scale 1:8,000.
BurnWJ2012h	1:8,000	Burns, W. J., Mickelson, K. A., Duplantis, S., and Williams, K., 2012, Landslide inventory maps of the Hillsboro quadrangle, Washington and Multnomah Counties, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 47, 4 pls., scale 1:8,000.
BurnWJ2012i	1:8,000	Burns, W. J., Duplantis, S., Mickelson, K. A., Spritzer, J. M., and Wells, R. E., 2012, Landslide inventory maps of the Gales Creek quadrangle, Washington County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 46, 4 pls., scale 1:8,000.
BurnWJ2012j	1:8,000	Burns, W. J., Mickelson, K. A., and Duplantis, S., 2012, Landslide inventory maps of the Vancouver quadrangle, Multnomah County, Oregon, and Clark County, Washington: Portland, Oreg., Oregon Department of Geology and Mineral Industries, Interpretive Map 45, 4 pls., scale 1:8,000.
BurnWJ2012k	1:8,000	Burns, W. J., Mickelson, K. A., Duplantis, S., and Madin, I. P., 2012, Landslide inventory maps of the Dixie Mountain quadrangle, Washington, Multnomah, and Columbia Counties, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 44, 4 pls., scale 1:8,000.
BurnWJ2012l	1:8,000	Burns, W. J., Mickelson, K. A., and Duplantis, S., 2012, Landslide inventory maps of the Camas quadrangle, Multnomah County, Oregon, and Clark County, Washington: Portland, Oreg., Oregon Department of Geology and Mineral Industries, Interpretive Map 43, 4 pls., scale 1:8,000.
BurnWJ2012m	1:8,000	Burns, W. J., Mickelson, K. A., and Duplantis, S., 2012, Landslide inventory maps of the Washougal quadrangle, Multnomah County, Oregon, and Clark County, Washington: Oregon Department of Geology and Mineral Industries, Interpretive Map 42, 4 pls., scale 1:8,000.
BurnWJ2012n	1:8,000	Burns, W. J., Mickelson, K. A., and Duplantis, S., 2012, Landslide inventory maps of the Mount Tabor quadrangle, Multnomah County, Oregon, and Clark County, Washington: Oregon Department of Geology and Mineral Industries, Interpretive Map 41, 4 pls., scale 1:8,000.
BurnWJ2012o	1:8,000	Burns, W. J., Mickelson, K. A., and Duplantis, S., 2012, Landslide inventory maps of the Sauvie Island quadrangle, Columbia and Multnomah Counties, Oregon, and Clark County, Washington: Oregon Department of Geology and Mineral Industries, Interpretive Map 40, 4 pls., scale 1:8,000.
BurnWJ2012p	1:8,000	Burns, W. J., Mickelson, K. A., Duplantis, S., and Williams, K., 2012, Landslide inventory maps of the Forest Grove quadrangle, Washington County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 39, 4 pls., scale 1:8,000.
BurnWJ2012q	1:8,000	Burns, W. J., Mickelson, K. A., and Duplantis, S., 2012, Landslide inventory maps of the Sandy quadrangle, Clackamas and Multnomah Counties, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 38, 4 pls., scale 1:8,000.
BurnWJ2012r	1:8,000	Burns, W. J., Mickelson, K. A., Duplantis, S., and Williams, K., 2012, Landslide inventory maps of the Scholls quadrangle, Washington County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 37, 4 pls., scale 1:8,000.
BurnWJ2013a	1:8,000	Burns, W. J., Mickelson, K. A., and Saint-Pierre, E. C., 2013, Landslide inventory maps of the northern half of the Vernonia quadrangle, Columbia County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 54, 2 pl., scale 1:8,000.
BurnWJ2013b	1:8,000	Burns, W. J., Mickelson, K. A., and Saint-Pierre, E. C., 2013, Landslide inventory maps of the southern half of the Pittsburg quadrangle, Columbia County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map 55, 2 pls., scale 1:8,000.
BurnWJ2013c	1:8,000	Burns, W. J., Duplantis, S., and Jones, C. B., 2013, Landslide inventory map of the Harbor Hills area, Curry County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-13-02, 1 pl., scale 1:8,000.
BurnWJ2013d	1:8,000	Burns, W. J., and Mickelson, K. A., 2013, Landslide inventory, susceptibility maps, and risk analysis for the City of Astoria, Clatsop County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-13-05, 33 p., 3 pls., scale 1:8,000.
BurnWJ2013e	1:8,000	Burns, W. J., Mickelson, K. A., Jones, C. B., Pickner, S. G., Hughes, K. L. B., and Sleeter, R., 2013, Landslide hazard and risk study of northwestern Clackamas County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-13-08, 38 p., 74 pl., 1:50,000; 1:8,000.
BurnWJ2014	1:8,000	Burns, W. J., Mickelson, K. A., and Stimely, L. L., 2014, Landslide inventory of coastal Curry County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-14-10, 8 pl.
BurnWJ2015a	1:8,000	Burns, W. J., Mickelson, K. A., Jones, C. B., Tilman, M. A., and Coe, D. E., 2015, Surficial and bedrock engineering geology, landslide inventory and susceptibility, and surface hydrography of the Bull Run Watershed, Clackamas and Multnomah Counties, Oregon: Oregon Department of Geology and Mineral Industries, Special Paper 46, 59 p.
BurnWJ2015b	1:8,000	Burns, W. J., and Mickelson, K., 2015, Landslide susceptibility of the southwest quarter of the Linnton quadrangle including Area 93/Bonny Slope West, Washington and Multnomah Counties, Oregon: Oregon Department of Geology and Mineral Industries, technical report to Washington County, Oregon, 62 p.
BurnWJ2017	1:12,000	Burns, W. J., and Lindsey, K. O., 2017, Landslide inventory of eastern Multnomah County: Oregon Department of Geology and Mineral Industries, Open-File Report O-17-03, 4 pl., geodatabase.
BurnWJ2017a	1:20,000	Burns, W. J., Herinckx, H. H., and Lindsey, K. O., 2017, Landslide inventory of portions of northwest Douglas County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-17-04, 4 pl., geodatabase.
BurnWJ2018	1:8,000	Burns, W. J., Calhoun, N. C., Franczyk, J. J., Lindsey, K. O., and Ma, L., 2018, Landslide hazard and risk study of central and western Multnomah County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map Series IMS-57.
BurnWJ2021	1:8,000	Burns, WJ, Herinckx, HH, McCarley, JM, Azzopardi, CJM, Calhoun, NC. 2021. Landslide inventory of portions of northwest douglas county, oregon, OFR O-21-09
BurnWJ2021a	1:8,000	Burns, W.J., Madin, I.P., and Calhoun, N.C. 2021. Landslide Inventory Map of the Coastal Portion of Clatsop County, Oregon, DOGAMI, Open-File Report O-21-10
BurnWJ2021b	1:8,000	Burns, W.J., Azzopardi, C.J., Gabel, L.L., and Calhoun, N.C. 2021. Landslide Inventory Map of the Coastal Portion of Lincoln County, Oregon, DOGAMI, Open-File Report O-21-11
BurnWJ2021c	1:8,000	Burns, W.J., Calhoun, N.C., Gabel, L.L., and Azzopardi, C.J. 2021. Landslide Inventory Map of the Coastal Portion of Lane County, Oregon, DOGAMI, Open-File Report O-21-12
BurnWJ2021d	1:8,000	Burns, W.J., Gabel, L.L., Azzopardi, C.J., and Calhoun, N.C. 2021. Landslide Inventory Map of the Coastal Portion of Douglas County, Oregon, DOGAMI, Open-File Report O-21-13
BurnWJ2022	1:8,000	Burns, W.J., Franczyk, J.J., and Calhoun, N.C., 2022, Protocol for channelized debris flow susceptibility mapping: Oregon Department of Geology and Mineral Industries, Special Paper SP-53.
BurnWJ2023	1:8,000	Burns, W., Calhoun, N., Franczyk, J., McClaughry, J., and Daniel, K., 2023, Landslide Inventory and Risk Reduction of the North and Central Portions of Wasco County, OR: Oregon Department of Geology and Mineral Industries, Open-File Report O-23-02.
BurnWJunpub2011	1:8,000	Burns, W. J., Madin, I. P., Mickelson, K. A., unpublished data, 2011, Landslide inventory of the northwestern quarter of the Salt Butte quadrangle, Crook County, Oregon: Oregon Department of Geology and Mineral Industries, scale 1:8,000.
BurnWJunpub2013a	1:8,000	Burns, W. J., and Mickelson, K. A., unpublished data, 2013, Landslide inventory, Clatsop County, Oregon: Oregon Department of Geology and Mineral Industries, scale 1:8,000.
BurnWJunpub2013b	1:8,000	Burns, W. J., and Mickelson, K. A., unpublished data, 2013, 2005-2009 landslide points, Clackamas County, Oregon: Oregon Department of Geology and Mineral Industries.
BurnWJunpub2014		Burns, W. J., Mickelson, K. A., Saint-Pierre, E. C., unpublished data, 2014, Landslide locations from 2005 through 2009 in Clatsop, Columbia, Tillamook, and Washington Counties, Oregon: Oregon Department of Geology and Mineral Industries.
BurnWJunpub2019		Burns, W. J., 2019, unpub. data, Western and northern landslide locations in 2016-2018: Oregon Department of Geology and Mineral Industries.
BurnWJunpub2021		Burns, W.J., Calhoun, N.C.,2021, unpub. data, 2014-2020, Oregon Department of Geology and Mineral Industries.
BussC2006	1:100,000	Busskohl, C., 2006, Land type associations of the Malheur, Umatilla, and Wallowa-Whitman National Forests, U.S. Department of Agriculture Forest Service, Pacific NW Region, scale 100,000.
CalhNC2018	1:8,000	Calhoun, N. C., Burns, W. J., Franczyk, J. J., and Monteverde, G., 2018, Landslide hazard and risk study of Eugene-Springfield and Lane County, Oregon: Oregon Department of Geology and Mineral Industries, Interpretive Map Serie IMS-60.
CalhNC2020	1:8,000	Calhoun, N. C., Madin, I., and Appleby, C., 2020, Landslide inventory for a portion of Marion County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-20-12, scale 1:8,000.
CalhNC2020a	1:8,000	Calhoun, N. C., Burns, W. J., and Franczyk, J. J., 2020, Landslide hazard and risk study of Tillamook County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-20-13, scale 1:8,000.
CalhNC2023		Calhoun, N.C., Burns, W.J., 2021, unpub. data, 2020-2023, Oregon Department of Geology and Mineral Industries.
CampVCunpubA	1:24,000	Camp, V. C., Ross, M., and Hanson, B., unpublished data, Geologic map of the McEwen Butte and Dunnean quadrangles, eastern Oregon, scale 1:24,000.
CampVCunpubB	1:24,000	Camp, V. C., Ross, M., and Hanson, B., unpublished data, Geologic map of the Juntura and part of the Selle Gap quadrangles, eastern Oregon, scale 1:24,000.
CampVCunpubC	1:24,000	Camp, V. C., Ross, M., and Hanson, B., unpublished data, Geologic map of the Venator and Circle Bar quadrangles, eastern Oregon, scale 1:24,000.
CampVCunpubD	1:24,000	Camp, V. C., Ross, M., and Hanson, B., unpublished data, Geologic map of the Mosquito Mountain and Warm Springs Reservoir quadrangles, Eastern Oregon, scale 1:24,000.
ConrRM1991	1:50,000	Conrey, R. M., 1991, Geology and petrology of the Mt. Jefferson area, high Cascade Range, Oregon: Pullman, Wash., Washington State University, dissertation, scale 1:50,000.
CoxGM1977	1:62,500	Cox, G. M., 1977, Bedrock geology of the Connor Creek area, Baker County, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:62,500.
CummJA1958	1:62,500	Cummings, J. A., 1958, The geology of the southern third of the Courtrock quadrangle, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:62,500.
CunnCT1979	1:4,800	Cunningham, C. T., 1979, Geology and geochemistry of a massive sulfide deposit and associated volcanic rocks, Blue Creek District, southwestern Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:4,800.
DickWR1965easthalf	1:63,360	Dickinson, W. R., and Vigrass, L. W., 1965, Geology of the Suplee-Izee area, Crook, Grant, and Harney Counties, Oregon (East): Oregon Department of Geology and Mineral Industries Bulletin 58, scale 1:63,360.
DickWR1965westhalf	1:63,360	Dickinson, W. R., and Vigrass, L. W., 1965, Geology of the Suplee-Izee area, Crook, Grant, and Harney Counties, Oregon (West), Portland, Oreg., Oregon Department of Geology and Mineral Industries Bulletin 58, 109 p., scale 1:63,360.
DiggMF1991	1:24,000	Diggles, M. F., Conrad, J. E., and Soreghan, G. A., 1991, Geologic map of the Diablo Mountain Wilderness Study Area, Lake County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-2121, scale 1:24,000.
DirrS2015	1:8,000	Dirringer, S., 2015, Landslide inventory mapping of the Drift Creek Watershed, Lincoln County, Oregon, using LiDAR data: Kent, Ohio, Kent State University, M.S. thesis.
DonaMM1992	1:24,000	Donato, M. M., 1992, Preliminary geologic map of the Carberry Creek quadrangle, Oregon and California: Reston, Va., U.S. Geological Survey Open-File Report 92-695, scale 1:24,000.
DonaMM1993	1:24,000	Donato, M. M., 1993, Preliminary geologic map of the Squaw Lakes quadrangle, Oregon and California: Reston, Va., U.S. Geological Survey Open-File Report 93-703, scale 1:24,000.
ErikA2002	1:24,000	Eriksson, A., 2002, Stratigraphy, structure, and natural gas potential of Tertiary sedimentary and volcanic units, Clatskanie 7.5-minute quadrangle, northwest Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
EvanJG1986a	1:62,500	Evans, J. G., 1986, Geologic map of the Homestead, Lake Fork, and Lick Creek roadless areas, Baker and Wallowa Counties, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map 1612-A, scale 1:62,500.
EvanJG1987	1:24,000	Evans, J. G., 1987, Geologic map of the Owyhee Canyon Wilderness study area, Malheur County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map 926, scale 1:24,000.
EvanJG1989	1:62,500	Evans, J. G., 1989, Geologic map of the Desolation Butte quadrangle, Grant and Umatilla Counties, Oregon: Reston, Va., U.S. Geological Survey Geologic Quadrangle 1654, scale 1:62,500.
EvanJG1990	1:24,000	Evans, J. G., 1990, Preliminary geologic map of the Dooley Mountain quadrangle, Baker County, Oregon: Reston, Va., U.S. Geological Survey Open-File Report 90-312, scale 1:24,000.
EvanJG1991	1:48,000	Evans, J. G., 1991, Geologic map of the Lower Owyhee Canyon Wilderness study area, Malheur County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map 2167, scale 1:48,000.
EvanJG1993	1:24,000	Evans, J. G., 1993, Geologic map of the Brann Gulch 7.5 minute quadrangle, Baker County, Oregon: Reston, Va., U.S. Geological Survey Geologic Quadrangle 1744, scale 1:24,000.
EvanJG1995	1:24,000	Evans, J. G., 1995, Geologic map of the Beaverdam Creek quadrangle, Baker County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map 2299, scale 1:24,000.
EvanJG2001	1:100,000	Evans, J. G., and Geisler, T. M., 2001, Geologic field-trip guide to Steens Mountain Loop Road, Harney County, Oregon: Reston, Va., U.S. Geological Survey Bulletin 2183, scale 100,000.
EvarRC2002	1:24,000	Evarts, R. C., 2002, Map of the Deer Island quadrangle, Columbia County, Oregon and Cowlitz County, Washington: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-2392, scale 1:24,000.
EvarRC2004	1:24,000	Evarts, R. C., 2004, Geologic map of the Saint Helens quadrangle, Columbia County, Oregon, and Clark and Cowlitz Counties, Washington: Reston, Va., U.S. Geological Survey Scientific Investigations Map 2834, scale 1:24,000.
FEMA2006	1:24,000	Federal Emergency Management Agency (FEMA), 2006, Preliminary landslide locations database and GIS files for December 2005 to January 2006 storms, in FEMA 1632-DR-OR: Bothell, Wash., FEMA Region X, CD-ROM.
FernML1983	1:24,000	Ferns, M. L., Brooks, H. C., and Avery, D. G., 1983, Geology and gold deposits of the Greenhorn quadrangle, Baker and Grant Counties, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-28, scale 1:24,000.
FernML1984	1:62,500	Ferns, M. L., Brooks, H. C., and Wheeler, G. R., 1984, Geology and gold deposits map of the northwest quarter of the Bates quadrangle, Grant County, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-31, scale 1:62,500.
FernML1987	1:24,000	Ferns, M. L., Brooks, H. C., Avery, D. G., and Blome, C. D., 1987, Geology and mineral resources map of the Elkhorn Peak quadrangle, Baker County, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-41, scale 1:24,000.
FernML1993a	1:100,000	Ferns, M. L., Brooks, H. C., Evans, J. G., and Cummings, M. L., 1993, Geologic map of the Vale 30? x 60? quadrangle, Malheur County, Oregon and Owyhee County, Idaho: Oregon Department of Geology and Mineral Industries Geologic Map GMS-77, vector digital data, scale 100,000.
FernML1993b	1:100,000	Ferns, M. L., Evans, J. G., and Cummings, M. L., 1993, Geologic map of the Mahogany Mountain 30? x 60? quadrangle, Malheur County, Oregon and Owyhee County, Idaho: Oregon Department of Geology and Mineral Industries Geologic Map GMS-78, vector digital data, scale 100,000.
FernML2001a	1:100,000	Ferns, M. L., Madin, I. P., and Taubeneck, W. H., 2001, Reconnaissance geologic map of the La Grande 30? x 60? quadrangle, Baker, Grant, Umatilla, and Union Counties, Oregon, : Oregon Department of Geology and Mineral Industries Recon. Map RMS-1, vector digital data scale 100,000.
FernML2001b	1:24,000	Ferns, M. L., Madin, I. P., McConnell, V. S., and Johnson, J. J., 2001, Geology of the surface and subsurface of the southern Grande Ronde Valley and lower Catherine Creek drainage, Union County, Oregon; a preliminary release: Oregon Department of Geology and Mineral Industries Open-File Report O-02-02, vector digital data, scale 1:24,000.
FernML2006a	1:24,000	Ferns, M. L., 2006, Preliminary geologic map of the Cayuse 7.5? quadrangle, Umatilla County, Oregon: Portland, Oreg, Oregon Department of Geology and Mineral Industries Open-File Report O-06-08, scale 1:24,000.
FernML2006b	1:24,000	Ferns, M. L., and McClaughry, J. D., 2006, Preliminary geologic map of the Houston Lake 7.5? quadrangle, Crook County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-21, scale 1:24,000.
FernML2006c	1:24,000	Ferns, M. L., and McClaughry, J. D., 2006, Preliminary geologic map of the Powell Buttes 7.5? quadrangle, Crook County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-24, scale 1:24,000.
FernML2010	1:100,000	Ferns, M. L., McConnell, V. S., Madin, I. P., and Johnson, J. A., 2010, Geology of the Upper Grande Ronde River Basin, Union County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 107, vector digital data, scale 1:100,000.
FernMLUnpubB	1:24,000	Ferns, M. L., and McConnell, V. S., unpublished data, Unpublished mapping in the Telocaset quadrangle, Baker and Union Counties, Oregon: Baker City, Oreg., Oregon Department of Geology and Mineral Industries, vector digital data, scale 1:24,000.
GrayF1980	1:12,000	Gray, F., 1980, Geology of the igneous complex at Tincup Peak, Kalmiopsis Wilderness Area, southwestern Oregon: Reston, Va., U.S. Geological Survey Open-File Report 80-1243, scale 1:12,000.
GrayF1982	1:62,500	Gray, F., Ramp, L., Moring, B., Douglas, I., and Donahoe, J., 1982, Geologic map of the Wild Rogue Wilderness, Coos, Curry, and Douglas Counties, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-1381A, scale 1:62,500.
GreeRC1972a	1:250,000	Greene, R. C., Walker, G. W., and Corcoran, R. E., 1972, Geologic map of the Burns quadrangle, Oregon: Washington, D.C., U.S. Geological Survey Interpretive Map I-680, scale 1:250,000.
HaddGH1959	1:31,680	Haddock, G. H., 1959, Geology of the Cougar Peak volcanic area, Lake County, Oregon: Pullman, Wash., Washington State University, thesis, scale 1:31,680.
HairRW2021	1:8,000	Hairston-Porter, R., Madin, I., Burns, W., and Appleby, C., 2021, Landslide, coseismic liquefaction susceptibility, and coseismic soil amplification class maps, Benton, Marion, Morrow, And Washington Cnties, OR: OR DOGAMI, Open-File Report O-21-14.
HalePO1975	1:24,000	Hales, P. O., 1975, Geology of Green Ridge area, Whitewater River quadrangle, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
HammPE1982	1:62,500	Hammond, P. E., Geyer, K. M., and Anderson, J. L., 1982, Preliminary geologic map and cross sections of the upper Clackamas and North Santiam Rivers area, northern Oregon Cascade Range: Portland, Oreg., Portland State University Department of Earth Sciences, scale 1:62,500.
HampER1972	1:48,000	Hampton, E. R., 1972, Geologic map and sections of the Molalla-Salem slope area, Northern Willamette Valley, Oregon: Washington, D.C., U.S. Geological Survey Water Supply Paper 1997, scale 1:48,000.
HaucSM1962	1:20,500	Hauck, S. M., 1962, Geologic map of the southwest quarter of the Brownsville Quadrangle, Oregon: Eugene, Oreg., University of Oregon, thesis, Plate 13, scale 1:20,500.
HeriCW1981	1:62,500	Hering, C. W., 1981, Geology and petrology of the Yamsay Mountain complex, south-central Oregon: A study of bimodal volcanism: Eugene, Oreg., University of Oregon, dissertation, scale 1:62,500.
HewiSL1970	1:24,000	Hewitt, S. L., 1970, Geology of the Fly creek quadrangle and the north half of the Round Butte dam quadrangle, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
HladFR1992	1:24,000	Hladky, F. R., 1992, Geology and mineral resources of the Shady Cove quadrangle, Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-52, scale 1:24,000.
HladFR1993	1:24,000	Hladky, F. R., 1993, Geology and mineral resources map of the McLeod quadrangle, Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-80, scale 1:24,000.
HladFR1994	1:24,000	Hladky, F. R., 1994, Geologic map of the Lakecreek quadrangle, Jackson County, Oregon: Portland, Oreg., Oregon Department of Geology and Mineral Industries Geological Map GMS- 88, scale 1:24,000.
HladFR1996	1:24,000	Hladky, F. R., 1996, Geology and mineral resources map of the Grizzly Peak quadrangle, Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-106, scale 1:24,000.
HladFR1998	1:24,000	Hladky, F. R., 1998, Geology and mineral resources map of the Rio Canyon quadrangle, Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-108, scale 1:24,000.
HladFR1999	1:24,000	Hladky, F. R., 1999, Geology and mineral resources map of the Brownsboro quadrangle, Jackson County, Oregon: Portland, Oreg. Oregon Department of Geology and Mineral Industries Geological Map GMS-109, scale 1:24,000.
HladFR2006	1:24,000	Hladky, F. R., and McCaslin, G. R., 2006, Preliminary geologic map of the Springfield 7.5? quadrangle, Lane County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-07, scale 1:24,000.
HladFR2007	1:24,000	Hladky, F. R., and Jenks, M. D., 2007, Preliminary geologic map of the Hamaker Mountain, Worden, and Lost River 7.5? quadrangles, Klamath County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-07-14, scale 1:24,000.
HofmRJ2000		Hofmeister, R. J., 2000, Slope failures in Oregon: GIS inventory for three 1996/97 storm events: Oregon Department of Geology and Mineral Industries Special Paper 34, 20 p., 1 CD-ROM.
HoodNF1997	1:24,000	Mount Hood National Forest, 1997, Landforms of the Mount Hood National Forest: U.S. Department of Agriculture Forest Service, Pacific NW Region, scale 1:24,000.
HoovL1963	1:62,500	Hoover, L., 1963, Geologic map and sections of the Anlauf and Drain quadrangles, Douglas and Lane Counties, Oregon: Washington, D.C., U.S. Geological Survey Bulletin 1122-D, scale 1:62,500.
HousRA2018	1:24,000	Houston, R. A., McClaughry, J. D., Duda, C. J. M., and Niewendorp, C. A., 2018, Geologic map of the Devine Ridge North 7.5' quadrangle, Harney County, Oregon: Oregon Department of Geology and Mineral Industries, Geologic Map GMS-121, 110 p.
HousRA2021	1:24,000	Houston, R.A., McClaughry, J.D., Azzopardi, C.J.M., and Ferns, M.L., 2021, Geologic Map of the Harney 7.5′ Quadrangle, Harney County, Oregon, Oregon Department of Geology and Mineral Industries Geological Map Series GMS 122.
HuggJW1978	1:24,000	Huggins, J. W., 1978, Geology of a portion of Painted Hills quadrangle, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
JackJS1979	1:24,000	Jackson, J. S., 1978, Geologic map of the Bull of the Woods area, Oregon: Portland, Oreg., Portland State University, thesis, scale 1:24,000.
JacoR1985	1:63,360	Jacobson, R., Milne, W., Brooks, H. C., Zollweg, J., and Brandsdottir, B., 1985, The 1984 landslide and earthquake activity on the Baker-Homestead highway near Halfway, Oregon: Portland, Oreg., Oregon Geology, v. 47, no. 8, p. 51?56, scale 1:63,360.
JenkMDUnpub	1:24,000	Jenks, M. D., unpublished data, Geologic compilation map of part of the Upper Klamath Basin, Klamath County, Oregon: Oregon Department of Geology and Mineral Industries, scale 1:24,000.
JohaNP1972	1:62,500	Johannesen, N. P., 1972, The geology of the northeast quarter of the Bone Mountain quadrangle, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:62,500.
JohnJA1994	1:24,000	Johnson, J. A., 1994, Geologic map of the Krumbo Reservoir quadrangle, Harney County, southeastern Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies 2267, scale 1:24,000.
JohnJA1995	1:24,000	Johnson, J. A., 1995, Geologic evolution of the Duck Creek Butte eruptive center, High Lava Plains, southeastern Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
JohnJA1998a	1:24,000	Johnson, J. A., Hooper, P. R., Hawkesworth, C. J., and Binger, G. B., 1998, Geologic map of the Stemler Ridge quadrangle, Malheur County, southeastern Oregon: Reston, Va., U.S. Geological Survey Open-File Report 98-105, scale 1:24,000.
JohnJA1998b	1:24,000	Johnson, J. A., 1998, Geologic map of the Frederick Butte volcanic center, Deschutes and Lake Counties, south-central Oregon: Reston, Va., U.S. Geological Survey Open-File Report 98- 0208, scale 1:24,000.
KoroMA1987	1:100,000	Korosec, M. A., 1987, Geologic map of the Hood River quadrangle, Washington and Oregon: Olympia, Wash., Washington Department of Natural Resources Open-File Report 87-6, scale 100,000.
KossEunpub2019		Ericka Koss, 2019, unpub. data, Bureau of Development Services, City of Portland, Oreg.
LangVW1991	1:24,000	Langer, V. W., 1991, Geology and petrologic evolution of the silicic to intermediate volcanic rocks underneath Steens Mountain Basalt, SE Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
MacLJW1994plate1	1:24,000	MacLean, J. W., 1994, Geology and geochemistry of Juniper Ridge, Horsehead Mountain and Burns Butte: Implications for the petrogenesis of silicic magma on the High Lava Plains, southeastern Oregon: Corvallis, Oreg., Oregon State University, thesis, Plate 1, scale 1:24,000.
MacLJW1994plate2	1:24,000	MacLean, J. W., 1994, Geology and geochemistry of Juniper Ridge, Horsehead Mountain and Burns Butte: Implications for the petrogenesis of silicic magma on the High Lava Plains, southeastern Oregon: Corvallis, Oreg., Oregon State University, thesis, Plate 2, scale 1:24,000.
MacLNS1995sheet1	1:24,000	MacLeod, N. S., Sherrod, D. R., Chitwood, L. A., and Jenson, R. A., 1995, Geologic map of Newberry Volcano, Deschutes, Klamath, and Lake Counties, Oregon:
MacLNS1995sheet2	1:24,000	MacLeod, N. S., Sherrod, D. R., Chitwood, L. A., and Jenson, R. A., 1995, Geologic map of Newberry Volcano, Deschutes, Klamath, and Lake Counties, Oregon: Reston, Va., U.S. Geological Survey Interpretive Map I-2455, sheet 2, scale 1:24,000.
MaddT1965	1:62,500	Maddox, T., 1965, Geologic map of the southern third of the Marcola quadrangle, Oregon: Eugene, Oreg., University of Oregon, thesis, Plate 17, scale 1:62,500.
MadiIP2006a	1:24,000	Madin, I. P., Murray, R. B., and Hladky, F. R., 2006, Preliminary geologic map of the Coburg 7.5? quadrangle, Lane and Linn Counties, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-06, scale 1:24,000.
MadiIP2006b	1:24,000	Madin, I. P., and Murray, R. B., 2006, Preliminary geologic map of the Eugene East and Eugene West 7.5? quadrangles, Lane County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-17, scale 1:24,000.
MadiIP2007	1:100,000	Madin, I. P., and Geitgey, R. P., 2007, Preliminary geologic map of the Umatilla Basin, Morrow and Umatilla Counties, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-07-15, vector digital data scale 100,000.
MadiIP2019	1:24,000	Madin, I. P., and McClaughry, J. D., 2019, Geologic map of the Biggs Junction and Rufus 7.5' quadrangles, Sherman and Gilliam Counties, Oregon: Oregon Department of Geology and Mineral Industries, Geologic Map GMS-124, 126 p.
MathAC1993	1:24,000	Mathis, A. C., 1993, Geology and petrology of a 26-Ma trachybasalt to peralkaline rhyolite suite exposed at Hart Mountain, southern Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
McclJD2006a	1:24,000	McClaughry, J. D., and Ferns, M. L., 2006, Preliminary geologic map of the Prineville 7.5? quadrangle, Crook County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-22, scale 1:24,000.
McclJD2006b	1:24,000	McClaughry, J. D., and Ferns, M. L., 2006, Preliminary geologic map of the Ochocco Reservoir 7.5? quadrangle, Crook County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-23, scale 1:24,000.
McClJD2010	1:8,000	McClaughry, J. D., Wiley, T. J., Ferns, M. L., and Madin, I. P., 2010, Digital geologic map of the southern Willamette Valley, Benton, Lane, Linn, Marion, and Polk Counties, Oregon: Portland Oreg., Oregon Department of Geology and Mineral Industries Open-File Report O-10-03, 116 p., scale 1:8,000.
McClJD2012	1:8,000	McClaughry, J. D., Wiley, T. J., Conrey, R. M., Jones, C. B., and Lite, Jr., K. E., 2003, Digital geologic map of the Hood River Valley, Hood River and Wasco Counties, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-12-03, 142 p., 1 pl., scale 1:36,000, geodatabase scale 1:8,000.
McClJD2013	1:8,000	McClaughry, J. D., Ma, L., Jones, C. B., Mickelson, K. A., and Wiley, T. J., 2013, Geologic map of the southwestern Oregon coast between Crook Point and Port Orford, Curry County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-13-21, 55 p., 4 pls., plate scale 1:24,000, geodatabase data scale 1:8,000.
McClJD2019	1:24,000	McClaughry, J. D., Duda, C. J. M., and Ferns, J. L., 2019, Geologic map of the Poison Creek and Burns 7.5' quadrangles, Harney County, Oregon: Oregon Department of Geology and Mineral Industries, Geologic Map GMS-123, 127 p.
McClJD2020	1:24,000	McClaughry, J.D., Duda, C.J.M., and Ferns, M.L., 2020, Geologic map of the Burns Butte 7.5′ quadrangle, Harney County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS 125.
McClJD2020b	1:24,000	McClaughry, J.D., Scott, W.E., Duda, C.J.M., and Conrey, R.M, 2020, Geologic Map of the Dog River and northern part of the Badger Lake 7.5′ quadrangles, Hood River County, Oregon: OR Dept of Geology and Mineral Industries Geological Map Series GMS 126.
McClJD2021a	1:24,000	McClaughry, J.D., Herinckx, H.H., Niewendorp, C.A., Azzopardi, C.J.M., and Hackett, J.M, 2021, Geologic Map of the Dufur Area, Wasco County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS 127.
McClJD2021b	1:24,000	McClaughry, J.D., Ferns, M.L., and Gordon, C.L., 2021, Geology of the north half of the lower Crooked River basin, Crook, Deschutes, Jefferson, and Wheeler Counties, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Bulletin 108.
McClJD2023	1:24,000	McClaughry, J.D., and Azzopardi, C.J.M., 2022, Geologic Map of the Athena 7.5′ quadrangle, Umatilla County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map Series GMS 129.
McClJDunpub2013	1:24,000	McClaughry, J. D., Ferns, M. L., Gordon, C. L., Patridge, K. A., Lite, K. E., and Conrey, R. C., 2013, unpublished data, Digital geologic map of the north half of the Lower Crooked Basin, Crook, Deschutes, Jefferson, and Wheeler Counties, Oregon: Oregon Department of Geology and Mineral Industries, 1 pl., scale 1:63,360, geodatabase scale 1:24,000.
McCoVSUnpubA	1:24,000	McConnell, V. S., unpublished data, Geologic map of the China Cap quadrangle, Union and Wallowa Counties, Oregon: Oregon Department of Geology and Mineral Industries, vector digital data, scale 1:24,000.
McCoVSUnpubB	1:24,000	McConnell, V. S., Ferns, M. L., unpublished data, Mapping in the Flagstaff Butte and Medical Springs quadrangles, Union and Baker Counties, Oregon: Oregon Department of Geology and Mineral Industries, vector digital data, scale 1:24,000.
MertSA2007a	1:75,000	Mertzman, S. A., and others, 2007, Preliminary geologic map of the Lake of the Woods South 7.5? quadrangle, Klamath County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report 07-13, scale 1:75,000.
MertSA2007b	1:75,000	Mertzman, S. A., Weaver, S. G., Gavi, A., and Powers, K., 2007, Preliminary geologic map of the Aspen Lake 7.5? quadrangle, Klamath County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report 07-17, scale 1:75,000.
MertSA2008	1:75,000	Mertzman, S. A., and others, 2008, Preliminary geologic map of the Mule Hill 7.5? quadrangle, Klamath County, Oregon and Siskiyou County, California: Oregon Department of Geology and Mineral Industries Open-File report O-08-08, scale 1:75,000.
MertSA2009	1:75,000	Mertzman, S. A., and others, 2009, Preliminary geologic map of the Robinson Butte 7.5? quadrangle, Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-09-02, scale 1:75,000.
MertSAUnpub	1:24,000	Mertzman, S. A., unpublished data, Geologic mapping of the High Cascade Mountains, southcentral Oregon: Lancaster, Pa., Franklin and Marshall College, scale 1:24,000.
MickKA2011	1:8,000	Mickelson, K. A., 2011, Lidar-based landslide inventory and susceptibility mapping, and differential LiDAR analysis for the Panther Creek Watershed, Coast Range, Oregon: Portland State University, Department of Geology, M.S. thesis, 82 p.
MickKA2012	1:8,000	Mickelson, K. A., and Burns, W. J., 2012, Landslide hazard and risk study of the U.S. Highway 30 corridor, Clatsop and Columbia Counties, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-12-06, 4 pls., plate scale, 1:24,000, geodatabase data scale 1:8,000.
MickKAunpub2012		Mickelson, K. A., 2012, unpublished data, Landslide locations in 2012 in western Oregon from the January 2012 storm: Oregon Department of Geology and Mineral Industries.
MickKAunpub2014		Mickelson, K. A., and Burns, W. J., 2014, unpub. data, Landslide point locations in 2013-2014 winter season in Oregon: Oregon Department of Geology and Mineral Industries.
MillPR1984	1:24,000	Miller, P. R., and Orr, W. N., 1984, Geologic map of the Wilhoit quadrangle, Oregon: Portland, Oreg., Oregon Department of Geology and Mineral Industries, Geological Map GMS-32, scale 1:24,000.
MinoSA1987b	1:24,000	Minor, S. A., Rytuba, J. J., Vander Meulen, D. B., Grubensky, M., and Tegtmeyer, K. J., 1987, Geologic map of the Wildhorse Lake quadrangle, Harney County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies 1915, scale 1:24,000.
MinoSA1990a	1:24,000	Minor, S. A., Vander Meulen, D. B., Rytuba, J. J., and Vercoutere, T. L., 1990, Geologic map of the Windy Point quadrangle, Harney County, Oregon: Reston, Va., U.S. Geological Survey Open- File Report 89-212, scale 1:24,000.
MinoSA1990b	1:24,000	Minor, S. A., Vander Meulen, D. B., Rytuba, J. J., Vercoutere, T. L., 1990, Geologic map of the V quadrangle, Harney County, Oregon: Reston, Va., U.S. Geological Survey Open-File Report 89-351, scale 1:24,000.
Misc_unpub		Miscellaneous newspaper articles in local papers and personal accounts of landslides as reported to the Oregon Department of Geology and Mineral Industries from various years.
MoorR2004	0.25	Moore, R., and Balzer, V., 2004, Review and analysis of the Winston Slide Event of February 2, 2004, Douglas County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-04-15, scale 1:300.
MuntJK1969	1:12,000	Muntzert, J. K., 1969, Geology and Mineral Deposits of the Brattain District, Lake County, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:12,000.
MuntSR1978	1:24,000	Munts, S. R., 1978, Geology of the Quartzville Mining District, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:24,000.
MurrRB2001	1:24,000	Murray, R. B., and Kays, M. A., 2001, Geologic map of the Richter Mountain quadrangle, Douglas and Jackson Counties, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-103, scale 1:24,000.
MurrRB2006a	1:24,000	Murray, R. B., 2006, Preliminary geologic nap of the Creswell 7.5? quadrangle, Lane County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-12, scale 1:24,000.
MurrRBUnpubA	1:24,000	Murray, R. B., unpublished data, Compilation and synthesis of geologic mapping for the upper Illinois River basin, Josephine and Curry Counties, Oregon: Oregon Department of Geology and Mineral Industries, scale 1:24,000.
MurrRBunpubB	1:24,000	Murray, R. B., unpublished data, Compilation and synthesis of geologic mapping for the Williams Creek basin, Josephine and Jackson Counties, Oregon, Portland, Oreg., Oregon Department of Geology and Mineral Industries, scale 1:24,000.
NappJE1958	1:62,500	Napper, J. E., 1958, The geology of the northern two thirds of the Courtrock quadrangle, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:62,500.
NichDK1989	1:24,000	Nicholson, D. K., 1989, Geologic map of the Yellowbottom-Boulder Creek area, Linn County, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
NiemAR1985	1:100,000	Niem, A. R., and Niem, W. A., 1985, Oil and gas investigation of the Astoria Basin, Clatsop and northernmost Tillamook Counties, Northwest Oregon: Oregon Department of Geology and Mineral Industries Oil and Gas Investigation OGI-14, scale 100,000.
NiemAR1990	1:125,000	Niem, A. R., Niem, W. A., and Baldwin, E. M., 1990, Geology, and oil, gas and coal resources of the southern Tyee Basin, southern Coast Range: Oregon Department of Geology and Mineral Industries Open-File Report 0-89-03, scale 1:125,000.
NiewCA2018	1:24,000	Niewendorp, C. A., Duda, C. J. M., Houston, R. A., and McClaughry, J. D., 2018, Geologic map of the Devine Ridge South 7.5' quadrangle, Harney County, Oregon: Oregon Department of Geology and Mineral Industries, Geologic Map GMS-120, 65 p.
NoblJB1979	1:62,500	Noblett, J. B., 1979, Volcanic petrology of the Eocene Clarno Formation on the John Day River near Cherry Creek, Oregon: Corvallis, Oreg., Oregon State University, dissertation, scale 1:62,500.
OConJE2001	1:250,000	O?Connor, J. E., Sarna-Wojcicki, A., Wozniak, K. C., Polette, D. J., and Fleck, R. J., 2001, Geologic map of Quaternary units in the Willamette Valley, Oregon: Reston, Va., U.S. Geological Survey Professional Paper 1620, scale 1:250,000.
ODOT2011		Oregon Department of Transportation, 2011, Unstable slopes asset management database: Salem, Oreg., ODOT Geo-Environmental Section, Technical Services Branch.
OlesKF1971	1:62,500	Oles, K. F., and Enlows, H. E., 1971, Bedrock geology of the Mitchell quadrangle, Wheeler County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 72, scale 1:62,500.
OlivJA1981	1:24,000	Oliveira, J. A. L., 1981, The stratigraphy, petrology, and paleomagnetics of the Moss Flat area, Lake County, Oregon: Reno, Nev., University of Nevada Reno, dissertation, scale 1:24,000.
OrrWN1986a	1:24,000	Orr, W. N., and Miller, P. R., 1986, Geologic map of the Drake Crossing quadrangle, Marion County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-50, scale 1:24,000.
OrrWN1986b	1:24,000	Orr, W. N., and Miller, P. R., 1986, Geologic map of the Elk Prairie quadrangle, Marion County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-51, scale 1:24,000.
OwenPC1977	1:24,000	Owen, P. C., 1976, Geological map of the Black Butte-Stephenson Mountain area, central Oregon, Wheeler, Jefferson, and Crook Counties: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
PageNJ1977	1:62,500	Page, N. J., Blair, W. N., Gray, F., Cannon, J. K., Grimes, D. J., and Leinz, R. W., 1977, Preliminary reconnaissance geologic map of the Wimer quadrangle, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-848, scale 1:62,500.
PageNJ1981	1:62,500	Page, N.J., Gray, F., Cannon, J. K., Foose, M.P., Lipin, B., Moring, B. C., Nicholson, S. W., Sawlin, M. G., Till, A., and Ziemianski, W. P., 1981, Geologic map of the Kalmiopsis Wilderness Area, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-1240A, scale 1:62,500.
PattRL1965	1:125,000	Patterson, R. L., 1965, Geology of part of the northeast quarter of the Mitchell quadrangle, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 125,000.
PertRK1976	1:62,500	Perttu, R. K., 1976, Structural geology of the northeast quarter of the Dutchman Butte quadrangle, southwest Oregon: Portland, Oreg., Portland State University, thesis, scale 1:62,500.
PeteNV1976Redmond	1:24,000	Peterson, N. V., Groh, E. A., Taylor, E. M., and Stensland, D. E., 1976, Geology & mineral resources of Deschutes County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 89, scale 1:24,000.
PeteNV1980	1:62,500	Peterson, N. V., Brown, D. E., and McLean, G. D., 1980, Preliminary geology and geothermal resource potential of the Lakeview area, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-80-9, scale 1:62,500.
PoguKR1999	1:24,000	Pogue, K. R., Carson, R. J., Crowley, P. D., and Hazlett, R. W., 1999, Geology of the Elkhorn Mountains, northeastern Oregon: Northfield, Minn., Fairway Foods, scale 1:24,000.
Portland2011		City of Portland, 2011, unpublished data from multi-bureau landslide points spreadsheet: Portland, Oreg.
PrieGR1982plate5	1:24,000	Priest, G. R., Vogt, B. F., and Woller, N. M, 1982, Geology and geothermal resources of the Cascades, plate 5, Lookout Point area: Oregon Department of Geology and Mineral Industries Open-File Report O-82-07, Plate 5, scale 1:24,000.
PrieGR1982plate6	1:62,500	Priest, G. R., Vogt, B. F., and Woller, N. M, 1982, Geology and geothermal resources of the Cascades, plate 6, Swift Creek area: Oregon Department of Geology and Mineral Industries Open-File Report O-82-07, Plate 6, scale 1:62,500.
PrieGR1983plate2	1:24,000	Priest, G. R., and Vogt, B. F., 1983, Geologic map of the Cougar Reservoir Area, Lane County, Oregon: Portland, Oreg., Oregon Department of Geology and Mineral Industries, Special Paper 15, 123 p., Plate 2, scale 1:24,000.
PrieGR1983plate3	1:24,000	Priest, G. R., and Vogt, B. F., 1983, Geology and geothermal resources of the central Oregon Cascade Range: Portland, Oreg., Oregon Department of Geology and Mineral Industries, Special Paper 15, 123 p., Plate 3, scale 1:24,000.
PrieGR1987	1:62,500	Priest, G. R., Woller, N.M., and Ferns, M. L., 1987, Geologic map of Brietenbush River area, Linn and Marion Counties, Oregon, , Portland, Oreg., Oregon Department of Geology and Mineral Industries Geologic Map GMS-46, scale 1:62,500.
PrieGR1988	1:62,500	Priest, G. R., Black, G. L., Woller, N. M., and Taylor, E. M., 1988, Geologic map of McKenzie Bridge 15? quad, Lane Co, Oregon, , Portland, Oreg., Oregon Department of Geology and Mineral Industries Geologic Map GMS-48, scale 1:62,500.
PrieGR2000	0.145833333	Priest, G. R., 2000, Memo: Cape Cove landslide, findings from field visit, February 10 & March 10, 2000, Portland, Oreg., Oregon Department of Geology and Mineral Industries Open-File Report O-00-03, scale 1:150.
PrieGR2004a	1:4,800	Priest, G. R., and Allan, J. C., 2004, Evaluation of coastal erosion hazard zones along dune and bluff backed shorelines in Lincoln County Oregon: Cascade Head to Seal Rock, Technical Report to Lincoln County, , Portland, Oreg., Oregon Department of Geology and Mineral Industries Open-File Report O-04-09, scale 1:4,800.
PrieGR2004b	1:4,800	Priest, G. R., Allan, J. C., and Sonnevil, R., 2004, Evaluation of Coastal Erosion Hazard Zones from Sisters Rock to North Gold Beach, Curry Co., Oregon: Technical report to Curry County, Portland, Oreg., Oregon Department of Geology and Mineral Industries Open-File Report O-04-20, scale 1:4,800.
ProsHJ1967	1:62,500	Prostka, H. J., 1967, Preliminary geologic map of the Durkee quadrangle, Oregon, , Portland, Oreg., Oregon Department of Geology and Mineral Industries Geologic Map GMS-3, scale 1:62,500.
RampL1961	1:275,500	Ramp, L., 1961, Geologic map of Babyfoot-Little Chetco area, Curry County, Oregon, Plate 10, Chromite in southwestern Oregon: Oregon Department of Geology and Mineral Industries Bulletin 52, scale 1:275,500.
RampL1986	1:62,500	Ramp, L., and Moring, B., 1986, Reconnaissance geologic map of the Marial quadrangle, southwestern Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-1735, scale 1:62,500.
RitcB1987	1:62,500	Ritchie, B., 1987, Inferred bedrock geology of the southern Sweet Home quadrangle, Western Cascades, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:62,500.
RobaRC1987	1:48,000	Roback, R. C., Vander Meulen, D. B., King, H. D., Plouff, D., Munts, S. R., and Willett, S. L., 1987, Mineral resources of the Pueblo Mountains Wilderness study area, Harney County, Oregon: Reston, Va., U.S. Geological Survey Bulletin 1740-B, scale 1:48,000.
RobiPT1975	1:125,000	Robinson, P. T., 1975, Reconnaissance geologic map of the John Day Formation in the southwestern part of the Blue Mountains and adjacent areas, north-central, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigation Map I-872, scale 1:125,000.
RobyTL1977	1:24,000	Robyn, T. L., 1977, Geology and petrology of the Strawberry Volcanics, NE Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:24,000.
RytuJJ1982a	1:24,000	Rytuba, J. J., Vander Meulen, D. B., Vercoutere, T. L., and Minor, S. A., 1982, Reconnaissance geologic map of Borax Lake quadrangle, Harney County, Oregon: Reston, Va., U.S. Geological Survey Open-File Report 82-1126, scale 1:24,000.
RytuJJ1983b	1:24,000	Rytuba, J. J., Minor, S. A., Miller, R. J., and Vander Meulen, D. B., 1983, Geologic map of the Red Mountains quadrangle, Harney County, Oregon: Reston, Va., U.S. Geological Survey Open-File Report 83-282, scale 1:24,000.
RytuJJ1983c	1:24,000	Rytuba, J. J., Minor, S. A., Miller, R. J., and Vander Meulen, D. B., 1983, Geologic map of the Red Lookout Butte quadrangle, Harney County, Oregon: Reston, Va., U.S. Geological Survey Open- File Report 83-283, scale 1:24,000.
RytuJJ1983e	1:24,000	Rytuba, J. J., Minor, S. A., and Vander Meulen, D. B., 1983, Geologic map of the Pole Canyon quadrangle, Harney County, Oregon: Reston, Va., U.S. Geological Survey Open-File Report 83-285, scale 1:24,000.
RytuJJ1983g	1:24,000	Rytuba, J. J., Bateson, J. T., Curtis Jr., D. L., and Cox, G. A., 1983, Geologic map of the Little Whitehorse Creek quadrangle, Harney County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies 1472, scale 1:24,000.
RytuJJ1983h	1:24,000	Rytuba, J. J., and Curtis Jr., D. L., 1983, Geologic map of the Oregon Canyon 3NW quadrangle, Malheur County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-1473, scale 1:24,000.
SchlHG1967Plate3	1:48,000	Schlicker, H. G., and Deacon, R. J., 1967, Engineering geology of the Tualatin Valley region: Oregon Department of Geology and Mineral Industries Bulletin 60, Plate 3, scale 1:48,000.
SchlHG1972hazards	1:62,500	Schlicker, H. G., Deacon, R. J., Beaulieu, J. D., and Olcott, G. W., 1972, Environmental geology of the coastal region of Tillamook and Clatsop Counties, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 74, scale 1:62,500.
SchlHG1973	1:62,500	SchlHG1973 1:62,500 Schlicker, H. G., Deacon, R. J., Olcott, G. W., and Beaulieu, J. D., 1973, Environmental geology of Lincoln County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin B-81, scale 1:62,500.
SchlHG1974	1:62,500	Schlicker, H. G., Deacon, R. J., Newcomb, R. C., and Jackson, R. L., 1974, Environmental geology of coastal Lane County, Oregon: Portland, Oreg., Oregon Department of Geology and Mineral Industries, Bulletin 85., scale 1:62,500.
SchlHG1974hazards	1:62,500	Schlicker, H. G., Deacon, R. J., Newcomb, R. C., and Jackson, R. L., 1974, Environmental geology of coastal Lane County. Oregon: Oregon Department of Geology and Mineral Industries Bulletin 85, scale 1:62,500.
SchlHG1975	1:24,000	Schlicker, H. G., and Brooks, H. C., 1975, Engineering geology of John Day: Oregon Department of Geology and Mineral Industries Open-File Report O-76-06, scale 1:24,000.
SchlHG1979hazards	1:24,000	Schlicker, H. G., and Finlayson, C., 1979, Geology and geologic hazards of northwestern Clackamas County, Oregon: Oregon Department of Geology and Mineral Industries Bulletin 99, 79 p., scale 1:24,000.
SchnDR1958	1:62,500	Schnaible, D. R., 1958, Geologic map and sections of the southwestern part of the Valsetz quadrangle, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:62,500.
SchuMG1980	1:24,000	Schulz, M. G., 1980, The quantification of soil mass movements and their relationship to bedrock geology in the Bull Run Watershed, Multnomah and Clackamas Counties, Oregon: Corvallis, Oreg., Oregon State University, thesis, Plate 1, scale 1:24,000.
ScotWE1992	1:24,000	Scott, W. E., and Gardner, C. A., 1992, Geologic map of the Mount Bachelor Volcanic Chain and surrounding area, Cascade Range, Oregon: Reston, Va., U.S. Geological Survey Interpretive Map I-1967, scale 1:24,000.
SherDR1988	1:62,500	Sherrod, D. R., 1988, Geology and Geothermal Resources of the Breitenbush-Austen Hot Springs Area, Clackamas and Marion Counties, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report OFR-88-05, scale 1:62,500.
SherDR1989	1:100,000	Sherrod, D. R., Minor, S. A., and Vercoutere, T. L., 1989, Geologic map of the Sheepshead Mountains, Harney and Malheur Counties, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-2079, scale 100,000.
SherDR1991	1:125,000	Sherrod, D. R., 1991, Geologic map of a part of the Cascade Range between latitudes 43 degrees - 44 degrees, central Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigation Map I-1891, scale 1:250,000.
SherDR1992	1:250,000	Sherrod, D. R., and Pickthorn, L. B. G., 1992, Geologic map of the west half of the Klamath Falls 1 by 2 degree quadrangle, south-central Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigation Map I-2182, scale 1:250,000.
SherDR1994	1:24,000	Sherrod, D. R., and Johnson, J. A., 1994, Geologic map of the Irish Lake quadrangle, Harney County, south-central Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-2256, scale 1:24,000.
SherDR1995	1:100,000	Sherrod, D. R., and Scott, W. E., 1995, Preliminary map of the Mount Hood 30- by 60-minute quadrangle, Cascade Range, north-central Oregon: Reston, Va., U.S. Geological Survey Open- File Report 95-219, scale 100,000.
SherDR2000	1:500,000	Sherrod, D. R., and Smith, J. G., 2000, Geologic map of Upper Eocene to Holocene Volcanic and Related Rocks of the Cascade Range, Oregon: Reston, Va., U.S. Geological Survey Interpretive Map I-2569, sheet 1, scale 1:500,000.
SherDR2004	1:100,000	Sherrod, D. R., Taylor, E. M., Ferns, F. L., Scott, W. E., Conrey, R. M., and Smith, G. A., 2004, Geologic map of the Bend 30- x 60-minute quadrangle, central Oregon: Reston, Va., U.S. Geological Survey Interpretive Map I-2683, scale 100,000.
SmitGA1987a	1:24,000	Smith, G. A., 1987, Geologic map of the Seekseequa Junction and a portion of the Metolius Bench quadrangles, Jefferson County, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-43, scale 1:24,000.
SmitGA1987b	1:24,000	Smith, G. A., and Hayman, G. A., 1987, Geologic map of the Eagle Butte and Gateway quadrangles, Jefferson and Wasco Counties, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-44, scale 1:24,000.
SmitGA1987c	1:24,000	Smith, G. A., 1987, Geologic map of the Madras West and Madras East quadrangles, Jefferson County, Oregon: Oregon Department of Geology and Mineral Industries Geologic Map GMS-GMS 45, scale 1:24,000.
SmitJG1982	1:250,000	Smith, J. G., Page, N. J., Johnson, M. G., Moring, B. C., and Gray, F., 1982, Preliminary geologic map of the Medford 1 by 2 degree quadrangle, Oregon and California: Reston, Va., U.S. Geological Survey Open-File Report 82-955, scale 1:250,000.
SnavPD1976b	1:62,500	Snavely, P. D. Jr., MacLeod, N. S., Wagner, H. C., and Rau, W. W., 1976, Geologic map of the Waldport and Tidewater quadrangles, Lincoln, Lane and Benton Counties, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigation Map I-866, scale 1:62,500.
SnavPD1976c	1:62,500	Snavely, P. D. Jr., MacLeod, N. S., Wagner, H. C., and Rau, W. W., 1976, Geologic map of the Yaquina and Toledo quadrangles, Lincoln County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigation Map I-867, scale 1:62,500.
SnavPD1996	1:24,000	Snavely, P. D. Jr., MacLeod, N. S., Wagner, H. C., and Rau, W. W., 1976, Geologic map of the Cape Foulweather and Euchre Mountain quadrangles, Lincoln County, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigation Map I-868, scale 1:62,500.
SobiS2010	1:4,000	Snavely, P. D. Jr., Niem, A., Wong, F. L., MacLeod, N. S., Calhoun, T. K., Minasian, D. L., and Niem, W., 1996, Geologic map of the Cascade Head area, northwestern Oregon Coast Range: (Neskowin, Netucca Bay, Hebo, and Dolph 7.5-minute quadrangles): Reston, Va., U.S. Geological Survey Open-File Report 96-534, scale 1:24,000.
StimJP1988	1:62,500	Stimac, J. P., 1988, Geology of the Stockade Mountain 15? quadrangle, Malheur and Harney Counties, Oregon: Hays, Kan., Fort Hays State University, thesis, scale 1:62,500.
StocAO1982	1:24,000	Stockman, A. O., 1982, Bedrock geology and structure of the Murderers Creek area, Grant County, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
StroHR1980	1:24,000	Stroh, H. R., 1980, Geology of the Clarno Formation in the vicinity of Stephenson Mountain, Jefferson, Crook and Wheeler Counties, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
SwanDA1969	1:250,000	Swanson, D. A., 1969, Reconnaissance geologic map of the east half of the Bend quadrangle, Crook, Wheeler, Jefferson, Wasco, and Deschutes Counties, Oregon: Washington, D.C., U.S. Geological Survey Miscellaneous Investigation I-568, scale 1:250,000.
SwanDA1981sheet1	1:250,000	Swanson, D. A., Anderson, J. L., Camp, V. E., Hooper, P. R., Taubeneck W. H., and Wright, T. L., 1981, Reconnaissance geologic map of the Columbia River Basalt Group, Northern Oregon and Western Idaho: Reston, Va., U.S. Geological Survey Open-File Report 81-797, Sheet 1, scale 1:250,000.
SwanDA1981sheet2	1:250,000	Swanson, D. A., Anderson, J. L., Camp, V. E., Hooper, P. R., Taubeneck, W. H., and Wright, T. L., 1981, Reconnaissance geologic map of the Columbia River Basalt Group, northern Oregon and western Idaho (sheet 2): Reston, Va., U.S. Geological Survey Open-File Report 81-797, Sheet 2, scale 1:250,000.
SwanDA1981sheet3	1:250,000	Swanson, D. A., 1981, Reconnaissance geologic map of the Columbia River Basalt Group, northern Oregon and western Idaho (sheet 3): Reston, Va., U.S. Geological Survey Open-File Report 81-797, Sheet 3, scale 1:250,000.
SwanDA1983	1:24,000	Swanson, D. A., and Wright, T. L., 1983, Geologic map of the Weha Tucannon Wilderness, Washington and Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Field Studies Map MF-1536, scale 1:24,000.
SwinCM1968	1:62,500	Swinney, C. M., 1968, Reconnaissance geologic map of the Lookout Mountain quadrangle, Crook and Wheeler Counties, Oregon: Washington, D.C., U.S. Geological Survey Interpretive Map I-543, scale 1:62,500.
ThayTP1956	1:62,500	Thayer, T. P., 1956, Preliminary geologic map of the John Day quadrangle, Oregon: Washington, D.C., U.S. Geological Survey Miscellaneous Field Studies Map MF-51, scale 1:62,500.
ThayTP1966	1:62,500	Thayer, T. P., and Brown, C. E., 1966, Geologic map of the Aldrich Mountain quadrangle, Grant County, Oregon: Washington, D.C., U.S. Geological Survey Geologic Quadrangle Map GQ-438, scale 1:62,500.
ThayTP1967b	1:62,500	Thayer, T. P., and Brown, C. E., 1967, Preliminary geologic map of the Long Creek quadrangle, Grant County, Oregon: Washington, D.C., U.S. Geological Survey Open-File Report 67-213, scale 1:62,500.
ThayTP1967c	1:62,500	Thayer, T. P., Brown, C.E., and Hay, R. L., 1967, Preliminary geologic map of the Prairie City quadrangle, Grant County, Oregon: Washington, D.C., U.S. Geological Survey Open-File Report 67-214, scale 1:62,500.
ThayTP1981	1:62,500	Thayer, T. P., Case, J. E., and Stotelmeyer, R. B., 1981, Mineral resources of the Strawberry Mountain Wilderness and adjacent areas, Grant County, Oregon: Reston, Va., U.S. Geological Survey Bulletin 1498, scale 1:62,500.
ThomTH1981	1:24,000	Thomas, T. H., 1981, Geology and mineral deposits of the Coyote Hills Mining District, Lake County, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
ThorDJ1984	1:24,000	Thormahlen, D.J., 1984, Geology of the northwest one-quarter of the Prineville quadrangle, central Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
TolaTL1982	1:21,120	Tolan, T. L., 1982, Geologic map of the Lower Columbia River Gorge, Oregon and Washington: Portland, Oreg., Portland State University, thesis, scale 1:21,120.
TolaTL1999sheet1	1:24,000	Tolan, T. L., and Beeson, M. H., 1999, Geologic map of the Silverton and Scotts Mills 7.5 minute quadrangles, northwest Oregon: Reston, Va., U.S. Geological Survey Open-File Report 99-141, Sheet 1, scale 1:24,000.
TolaTL2000sheet2	1:24,000	Tolan, T. L., and Beeson, M.H., 2000, Geologic map of the Salem East and Turner 7.5? quadrangles, Marion County, Oregon: a digital database: Reston, Va., U.S. Geological Survey Open-File Report 00-351, Sheet 2, scale 1:24,000.
TravPL1977	1:160,000	Travis, P. L., 1977, Geology of the area near the north end of Summer Lake, Lake County, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:160,000.
TuckER1975	1:24,000	Trimble, D. E., 1963, Geologic map and diagrammatic section of Portland, Oregon and adjacent areas: Washington, D.C., U.S. Geological Survey Bulletin B-1119, scale 1:62,500.
VandDB1988	1:62,500	Tucker, E. R., 1975, Geology and structure of the Brothers Fault Zone in the central part of the Millican SE quadrangle, Deschutes, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
WalkGW1963	1:250,000	Walker, G. W., 1963, Reconnaissance geologic map of the eastern half of the Klamath Falls (AMS) quadrangle, Lake and Klamath Counties, Oregon: Washington, D.C., U.S. Geological Survey Miscellaneous Field Studies Map MF-280, scale 1:250,000.
WalkGW1965	1:250,000	Walker, G. W., and Repenning, C. A., 1965, Reconnaissance geologic map of the Adel quadrangle, Lake, Harney, and Malheur Counties, Oregon: Washington, D.C., U.S. Geological Survey Interpretive Map 446, scale 1:250,000.
WalkGW1966	1:250,000	Walker, G. W., and Repenning, C. A., 1966, Reconnaissance geologic map of the west half of the Jordan Valley quadrangle, Malheur County, Oregon: Washington, D.C., U.S. Geological Survey Interpretive Map 457, scale 1:250,000.
WalkGW1967	1:250,000	Walker, G. W., Peterson, N. V., and Greene, R. C., 1967, Reconnaissance geologic map of the east half of the Crescent quadrangle, Lake, Deschutes, and Crook Counties, Oregon: Washington, D.C., U.S. Geological Survey Miscellaneous Investigation Map I-493, scale 1:250,000.
WalkGW1968figure2	1:62,500	Walker, G. W., and Swanson, D. A., 1968, Summary report on the geology and mineral resources of the Poker Jim Ridge and Fort Warner areas of the Hart Mountain National Antelope Refuge, Lake County, Oregon: Washington, D.C., U.S. Geological Survey Bulletin 1260-M, Figure 2, scale 1:62,500.
WalkGW1968figure3	1:62,500	Walker, G. W., and Swanson, D. A., 1968, Summary report on the geology and mineral resources of the Poker Jim Ridge and Fort Warner areas of the Hart Mountain National Antelope Refuge, Lake County, Oregon: Washington, D.C., U.S. Geological Survey Bulletin 1260-M, Figure 3, scale 1:62,500.
WalkGW1979	1:250,000	Walker, G. W., 1979, Reconnaissance geologic map of the Oregon part of the Grangeville quadrangle, Baker, Union, Umatilla, and Wallowa Counties, Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigations Map 1116, scale 1:250,000.
WalkGW1980b	1:24,000	Walker, G. W., 1980, Preliminary report on the geology of the Lakeview uranium area, Lake County, Oregon: Reston Va., U.S. Geological Survey Open-File Report 80-532, scale 1:24,000.
WalkGW1989	1:250,000	Walker, G. W., and Duncan, R. A., 1989, Geologic map of the Salem 1 degree x 2 degrees, quadrangle, western Oregon: Reston, Va., U.S. Geological Survey Miscellaneous Investigation Map I-1893, scale 1:250,000.
WalkGW2002	1:500,000	Walker, G. W., 2002, Spatial digital database for the geologic map of Oregon: Reston, Va., U.S. Geological Survey Open-File Report 03-67, scale 1:500,000.
WangZ2001	1:50,000	Wang, Z., Graham, G. B., and Madin, I. P., 2001, Preliminary earthquake hazard and risk assessment and water-induced landslide hazard in Benton County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-01-05, 89 p., scale 1:50,000.
WateAC1968a	1:62,500	Waters, A. C., 1968, Reconnaissance geologic map of the Eagle Rock quadrangle, Crook County, Oregon: Washington, D.C., U.S. Geological Survey Interpretive Map I-540, scale 1:62,500.
WateAC1968b	1:62,500	Waters, A. C., 1968, Reconnaissance geologic map of the Ochoco Reservoir quadrangle, Crook County, Oregon: Washington, D.C., U.S. Geological Survey Interpretive Map I-541, scale 1:62,500.
WateAC1968c	1:62,500	Waters, A. C., 1968, Reconnaissance geologic map of the Post quadrangle, Crook County, Oregon: Reston, Va., U.S. Geological Survey Interpretive Map I-542, scale 1:62,500.
WateAC1968d	1:125,000	Waters, A. C., 1968, Reconnaissance geologic map of the Madras quadrangle, Jefferson and Wasco County, Oregon: Washington, D.C., U.S. Geological Survey Interpretive Map I-555, scale 1:125,000.
WeidJP1980	1:62,500	Weidenheim, J. P., 1980, The petrography, structure, and stratigraphy of Powell Buttes, Crook County, Central Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:62,500.
WeisKW1984	1:24,000	Weissenburger, K. W., 1984, Lakeview uranium area, Lake County, Oregon: Constraints on genetic modelling from a district-scale perspective: Palo Alto, Calif., Stanford University, dissertation, scale 1:24,000.
WellFG1949	1:96,000	Wells, F., Holtz, P., and Cater Jr., F., 1949, Prelim. Description of Kerby quad geology: Oregon Department of Geology and Mineral Industries Bulletin B-40, scale 1:96,000.
WellFG1953	1:62,500	Wells, F. G., and Walker, G. W., 1953, Geology of the Galice quadrangle, Oregon: Reston Va., U.S. Geological Survey Geologic Quadrangle GQ-25, scale 1:62,500.
WellRE1975	1:62,500	Wells, R. E., 1975, The geology of the Drake Peak Rhyolite complex and the surrounding area, Lake County, Oregon: Eugene, Oreg., University of Oregon, thesis, scale 1:62,500.
WellRE1983	1:250,000	Wells, R. E., Niem, A. R., MacLeod, N. S., Snavely, P. D. Jr., and Niem, W. A., 1983, Preliminary geologic map of the west half of the Vancouver (Washington-Oregon) 1 x 2 degree quadrangle, Reston, Va., U.S. Geological Survey Open-File Report 83-591, scale 1:250,000.
WellRE1995	1:48,000	Wells, R. E., Snavely, P. D., MacLeod, N. S., Kelly, M. M., Parker, M. J., Fenton, J. S., and Felger, T. J., 1995, Geologic map of the Tillamook Highlands, northwest Oregon Coast Range; a digital database: Reston, Va., U.S. Geological Survey Open-File Report 95-670, scale 1:48,000.
WellRE2000	1:100,000	Wells, R. E., Jayko, A. S., Niem, A. R., Black, G., Wiley, T. J., Baldwin, E., Molenaar, K. M., Wheeler, K. L., DuRoss, C. B., and Givler, R. W., 2000, Geologic map and database of the Roseburg 30? x 60? quadrangle, Douglas and Coos Counties: Reston, Va., U.S. Geological Survey Open-File Report 00-376, scale 100,000.
WellRE2020	1:63,360	Wells,R., Haugerud,R., Niem,A., Niem,W., Ma,L., Evarts,R., O’Connor,J., Madin,I., Sherrod,D., Beeson,M., Tolan,T., Wheeler,K., Hanson,W., and Sawlan,M., 2020, Geologic map of the Portland metro area and surrounding region, OR and WA: USGS SIM 3443.
WendDW1988	1:24,000	Wendland, D. W., 1988, Castle Rock: a Late Miocene eruptive center at the north end of Green Ridge, Jefferson County, Oregon, Geologic map of the northern end of Green Ridge, Jefferson County, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
WethCE1960	1:24,000	Wetherell, C. E., 1960, Geology of part of the southeastern Wallowa Mountains, northeastern Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
WhitDL1994	1:24,000	White, D. L., and Vallier, T. L., 1994, Geologic evolution of the Pittsburg Landing area, Snake River Canyon, Oregon and Idaho: Reston, Va., U.S. Geological Survey Professional Paper 1439, scale 1:24,000.
WhitWH1964	1:62,500	White, W. H., 1964, Geology of the Picture Gorge quadrangle, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:62,500.
WilcRE1966	1:62,500	Wilcox, R. E., and Fisher, R. V., 1966, Geologic map of the Monument quadrangle, Grant County, Oregon: Washington, D.C., U.S. Geological Survey Geologic Quadrangle Map GQ-541, scale 1:62,500.
WileTJ1991	1:24,000	Wiley, T. J., Hladky, F. R., 1991, Geology and mineral resources map of the Boswell Mountain quadrangle, Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-70, scale 1:24,000.
WileTJ1993a	1:24,000	Wiley, T. J., 1993, Geology and mineral resources map of the Cleveland Ridge quadrangle, Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Geological Map GMS-73, scale 1:24,000.
WileTJ1993bplate1	1:24,000	Wiley, T. J., Smith, J. G., 1993, Preliminary geologic map of the Medford East, Medford West, Eagle Point, and Sams Valley quadrangles, Jackson County, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-93-13, Plate 1, scale 1:24,000.
WileTJ2006a	1:24,000	Wiley, T. J., 2006, Preliminary geologic map of the Wimer and McConville Peak quadrangles, Jackson and Josephine Counties, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-05, scale 1:24,000.
WileTJ2006b	1:24,000	Wiley, T. J., 2006, Preliminary geologic map of the Sexton Mountain, Murphy, Applegate, and Mount Isabelle 7.5? quadrangles, Jackson and Josephine Counties, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-05, scale 1:24,000.
WileTJ2006c	1:24,000	Wiley, T. J., 2006, Preliminary geologic map of the Gold Hill and Rogue River 7.5? quadrangles, Jackson and Josephine Counties, Oregon: Oregon Department of Geology and Mineral Industries Open-File Report O-06-18, scale 1:24,000.
WileTJ2007	1:24,000	Wiley, T. J., 2007, unpublished data, Preliminary geologic map of southwestern Curry County, Oregon: Oregon Department of Geology and Mineral Industries, scale 1:24,000.
WileTJ2011	1:8,000	Wiley, T.J., McClaughry, J.D., and D'Allura, J.A., 2011, Geologic database and generalized geologic map of Bear Creek Valley, Jackson County, Oregon: Oreg Department Geol and Min Ind, Open-File Report O-11-11, 75 p., 1 pl., scale 1:63,360, geodatabase, scale 1:8,000.
WileTJ2014	1:8,000	Wiley, T. J., McClaughry, J. D., Ma, L., Mickelson, K. A., Niewendorp, C. A., Stimely, L. L., Herinckx, H. H., and Rivas, J., 2014, Geologic map of the southern Oregon coast between Port Orford and Bandon, Curry and Coos counties, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-14-01, 66 p., 3 pl., scale 1:24,000, geodatabase.
WileTJ2015	1:8,000	Wiley, T. J., McClaughry, J. D., Niewendorp, C. A., Ma, L., Herinckx, H. H., and Mickelson, K. A., 2015, Geologic map of the southern Oregon coast between Bandon, Coquille, and Sunset Bay, Coos County, Oregon: Oregon Department of Geology and Mineral Industries, Open-File Report O-15-04, 57 p. 4 pl.
WileTJunpub	1:100,000	Wiley, T. J., Hladky, F. R., D?Allura, J. A., and Mertzman, S. A., unpublished data, Preliminary geologic map of the Medford 30 x 60 minute quadrangle, Oregon and California: Oregon Department of Geology and Mineral Industries, scale 1:100,000.
WilkRM1986	1:24,000	Wilkening, R. M., 1986, The geology and hydrothermal alteration of the Bear Creek Butte area, Crook County, central Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
WittRC2007	1:9,600	Witter, R. C., Allan, J. C., and Priest, G. R., 2007, Evaluation of coastal erosion hazard zones along dune and bluff backed shorelines in Lincoln County, Oregon: Seal Rock to Cape Perpetua: Oregon Department of Geology and Mineral Industries Open-File Report O-07-03, 42 p., scale 1:9,600.
WittRC2009	1:9,000	Witter, R. C., Horning, T., and Allan, J. C., 2009, Coastal erosion hazard zones in southern Clatsop County, Oregon: Seaside to Cape Falcon: Oregon Department of Geology and Mineral Industries Open-File Report O-09-06, scale 1:9,000.
WoodJD1976	1:24,000	Wood, J. D., 1976, The geology of the Castle Rock area, Grant, Harney and Malheur Counties, Oregon: Portland, Oreg., Portland State University, thesis, scale 1:24,000.
YeatRS1996plate2a	1:100,000	Yeats, R. S., Werner, K. S., and Popowski, T. A., 1996, Geologic map of the northern Willamette Valley, Clackamas, Marion, Multnomah, Polk, Tillamook, Washington and Yamhill Counties, Oregon: Reston, Va., U.S. Geological Survey Professional Paper PP-1560, Plate 2a, scale 100,000.
YeatRS1996plate2b	1:100,000	Yeats, R. S., Graven, E. P., Werner, K. S., Goldfinger, C., and Popowski, T. A., 1996, Geologic map of the central and southern Willamette Valley, Benton, Lane, Linn, Marion and Polk Counties, Oregon: Reston, Va., U.S. Geological Survey Professional Paper PP-1560, Plate 2b, scale 100,000.
YogoGM1985	1:24,000	Yogodzinski, G. M., 1985, The Deschutes Formation ? High Cascades transition in the Whitewater River area, Jefferson County, Oregon: Corvallis, Oreg., Oregon State University, thesis, scale 1:24,000.
YuleJD1996plate10	1:24,000	Yule, J. D., 1996, Geologic and tectonic evolution of Jurassic marginal ocean basin lithosphere, Klamath Mountains, Oregon: Pasadena, Calif., California Institute of Technology, dissertation, plate 10, scale 1:24,000.
YuleJD1996plate11	1:24,000	Yule, J. D., 1996, Geologic and tectonic evolution of Jurassic marginal ocean basin lithosphere, Klamath Mountains, Oregon: Pasadena, Calif., California Institute of Technology, dissertation, plate 11, scale 1:24,000.
YuleJD1996plate2	1:24,000	Yule, J. D., 1996, Geologic and tectonic evolution of Jurassic marginal ocean basin lithosphere, Klamath Mountains, Oregon: Pasadena, Calif., California Institute of Technology, dissertation, plate 2, scale 1:24,000.
YuleJD1996plate8	1:24,000	Yule, J. D., 1996, Geologic and tectonic evolution of Jurassic marginal ocean basin lithosphere, Klamath Mountains, Oregon: Pasadena, Calif., California Institute of Technology, dissertation, plate 8, scale 1:24,000.
YuleJD1996plate9	1:24,000	Yule, J. D., 1996, Geologic and tectonic evolution of Jurassic marginal ocean basin lithosphere, Klamath Mountains, Oregon: Pasadena, Calif., California Institute of Technology, dissertation, plate 9, scale 1:24,000.

Development

Updates: October 30, 2020: DOGAMI Open-File Report O-20-13, Landslide hazard and risk study of Tillamook County, Oregon data added. SLIDO-4.2 has 53,311 landslide polygons in the Deposits feature class dataset from 359 studies, 14,326 historical landslide point locations, and 72 locations of detailed studies.

October 9, 2020: DOGAMI Open-File Report O-20-13, Landslide inventory for a portion of Marion County, Oregon data added. SLIDO-4.1 has 49,604 landslide polygons in the Deposits feature class dataset from 358 studies, 14,002 historical landslide point locations, and 72 locations of detailed studies.

December 19, 2019: SLIDO-4.0 data incorporated. SLIDO-4.0 has 47,586 landslide deposit polygons from 357 studies, 13,994 historical landslide point locations. Deep and shallow landslide susceptibility from detailed studies added. Interface updated.

December 14, 2017: SLIDO 3.4 data incorporated. SLIDO 3.4 has 44,929 landslide deposit polygons from 354 studies, 13,048 historical landslide point locations, and 72 locations of detailed studies.

September 21, 2017: Redeployed using Esri ArcGIS Server and JavaScript. Added lidar bare earth and highest hit imagery as layers.

September 20, 2017: SLIDO 3.3 data incorporated. SLIDO 3.3 has 41,986 landslide deposit polygons from 353 studies, 12,099 historical landslide point locations, and 72 locations of detailed studies.

February 24, 2016: Statewide landslide susceptibility layer added.

December 29, 2014: SLIDO 3.2 data incorporated. SLIDO 3.2 has 41,029 landslide deposit polygons and landslide-related features from 351 published and unpublished studies, 12,095 historical landslide point locations, and 72 locations of detailed studies on individual landslides

June 24, 2014: SLIDO 3.1 data incorporated; WCS map service added.

April 2014: SLIDO-3 data incorporated; interface updated.

February 2012: SLIDO-2 data incorporated; interface updated.

September 2009: Redeployed using ArcGIS Server.

June 2008: Initial version. Built using Map-Fu and UMN MapServer software.

Funding

Funding for SLIDO-4.0 provided in part by FEMA through an interagency agreement with OEM (HMGP DR-4258-OR). Funding for SLIDO-3x was provided by DOGAMI. Funding for SLIDO-2 was partially provided by the Oregon Geospatial Enterprise Office through Interagency Agreement No. 52813. The development of SLIDO-1 was partially funded by the U.S. Geologic Survey (USGS) Landslide Hazards Program through Award 07CRGR0009.