USGS Geologic Map: Ochoco Reservoir Quadrangle, Crook County, Oregon

Description: Reconnaissance geologic map of the Ochoco Reservoir Quadrangle, Crook County, Oregon

Publisher: U.S. Geological Survey 

Series: I-541

Print Date: 1968

Scale: 1:62,500

Format: Folded

Media: One-sided paper map with color graphics.