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Oregon Historical Mining Information

Mining Records - Multnomah County

The digital records available here are scans of the literature originally found in DOGAMI published and unpublished hardcopy holdings. Scans have been combined into single PDFs that may include maps, letters, news clippings, photographs, and reports. Note that some PDF files are very large.

This digital archive is evolving. Please contact us if you have suggestions or find errors. DOGAMI acknowledges Tomas Benson and Carol DuVernois for their excellent work on the DOGAMI historical documents scanning project.

Disclaimer: Mining sites are included for informational purposes only and should not be used to infer acceptable or permitted land use actions. Interested parties should contact their local land use authority to verify zoning and applicable land use ordinances. Respect the rights of private property owners. Understand that recreation in or around inactive mine sites is extremely dangerous and can result in serious injury or death. Stay out and stay alive! 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. These data should not be used for site-specific studies. 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.

Questions?

Email: dogami-info@oregon.gov

Phone: 971-673-1555

Multnomah CountyMining SiteLink
Unclassified DistrictColumbia Brick Works Claim Columbia Brick Works Report
Unclassified DistrictCornelius Pass Magnetite Claim Cornelius Pass Magnetite Report
Unclassified DistrictDavies Springs Claim Davies Springs Report
Unclassified DistrictExhumed Forest Oxbow Park Oxbow Park Exhumation Report
Unclassified DistrictGas Seepage in NE Portland NE Portland Gas Seep Report
Unclassified DistrictJetty Stone Prospect Claim Jetty Stone Prospect Letters
Unclassified DistrictLadd Artesian Well Claim Ladd Artesian Well Report
Unclassified DistrictLandslide Investigation Landslide Investigative Report
Unclassified DistrictMultnomah County Mineral Evaluation Mineral Evaluation Report
Unclassified DistrictMultnomah County Report Multnomah General Report
Unclassified DistrictNorth Plains Oil Seep Claim North Plains Oil Seep Report
Unclassified DistrictOil Seep Investigation Claim Oil Seep Investigation Report
Unclassified DistrictPhantom Montavilla Volcano Phantom Montavilla Volcano Report
Unclassified DistrictPortland Cinders Claim Portland Cinders Report
Unclassified DistrictPortland Tunnel Claim Portland Tunnel Report
Unclassified DistrictRice Gravel Pit Claim Rice Gravel Pit Reports
Unclassified DistrictRocky Point Oil Seep Claim Rocky Point Oil Seep Report
Unclassified DistrictRooster Rock Crown Point Reports Rooster Rock Crown Point Report
Unclassified DistrictSylvan Brick Company Claim Sylvan Brick Company Report
Unclassified DistrictTroutdale Quartzite Claim Troutdale Quartzite Report