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2012 Map of Updegraff Ridge

Name: 2012 Topographic Map of Updegraff Ridge
Creator: U.S. Geological Survey
Published: 2012
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2012

About this map

The Eel River and its major tributary, the N Fork Eel River, dictate the rugged geography of this northern California landscape. Long established ranching properties like Island Mountain Ranch and Big Bend Ranch occupy the plateaus and slopes above the river canyons, reflecting a rural economy tied to the land. The small settlements of Ramsey and Island Mountain are positioned along the winding river corridor, while Spyrock marks a point of interest further south.

Topographical landmarks such as Updegraff Ridge and Coyote Rock rise above the drainage basins of Big Bend Cr and Bell Springs Cr, defining the elevation changes of the Mendocino county interior. This survey provides a clear view of the water network feeding into the main channel, including Wilson Cr, Buck Cr, and Blue Rock Cr, alongside more isolated features like Horse Ranch Lake near the northern boundary.