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2023 Map of Owyhee Ridge

Name: 2023 Topographic Map of Owyhee Ridge
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

Owyhee Ridge dominates this high-desert landscape in eastern Oregon, where a sophisticated network of water management features supports life in the arid Malheur County terrain. Numerous man-made catchments including Calhoun Reservoir, Rock Fence Reservoir, and Bench Reservoir are scattered across the uplands, highlighting the area's reliance on collected runoff. The topography is defined by dramatic landforms such as The Tongue, which projects into the northern waters of Lake Owyhee, and the prominent rise of Board Corral Mtn to the south.

Drainage patterns are intricate, with seasonal watercourses like South Branch Camp Kettle Creek and North Alkali Creek carving deep pathways through the ridges. Named springs such as Monument Spring and Three Fingers Spring indicate critical water sources for local livestock and wildlife. This modern survey illustrates how infrastructure like Upper Tunnel RD and Fisherman RD provides access through the complex system of gulches and ridges that define the Owyhee backcountry.