Its 284 mile journey to the Columbia River starts in the Strawberry Mountains in Eastern Oregon. The State designated South Fork of the John Day River enters just upstream of Picture Gorge, a deep canyon cut by the John Day River. Below Picture Gorge, the river enters scenic canyonlands and passes through the John Day Fossil Beds National Monument, where it is eventually joined by the State Scenic North Fork John Day River (along with the State Scenic Middle Fork John Day River) near Kimberly, Oregon. From this point, the Lower John Day River flows westerly past the communities of Spray and Twickenham before curving north through scenic canyons to Clarno.
The next 70 miles meander through deep canyons and BLM wilderness areas before reaching Cottonwood Canyon State Park. The last portion of the river flows through the State Park and past the historic McDonald Ferry crossing before reaching Tumwater Falls (the stopping point for all navigation). The last nine miles of river below Tumwater Falls are slow and affected by the pool created by the John Day dam on the Columbia River.
Several stretches of the John Day River are included in the scenic waterway including:
• North Fork from North Fork John Day Wilderness boundary to River Mile 20.2 above Monument (~57 miles)
• South Fork from Post-Paulina Road crossing to Murderers’ Creek Wildlife Area above Dayville (~30 miles)
• Middle Fork from Crawford Creek to confluence with North Fork (~73 miles)
• Main stem from Parrish Creek to Tumwater Falls (~158 miles) Portions of the main stem, North Fork, and South Fork are also part of the National Wild and Scenic Rivers System.