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1958 Map of Wilson Valley

Name: 1958 Topographic Map of Wilson Valley
Creator: U.S. Geological Survey
Published: 1993
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1993

About this map

Cache Creek winds through a complex network of canyons and ridges in this landscape where Lake, Colusa, and Yolo counties converge. The terrain is defined by dramatic elevation shifts, anchored by prominent peaks like Grizzly Peak and the Twin Sisters. In the southern portion of the quadrangle, the small settlement of Morgan sits within the eponymous Morgan Valley, connected to the surrounding area by Morgan Valley Road and Riffe Road.

Water sources are vital markers in this arid environment, with named landmarks such as Dunfield Spring and Bear Spring providing crucial points of reference. The mapping also identifies distinct topographical features like The Peninsula near the bend of Wilson Valley Creek and the level ground of Dunfield Flats and Kennedy Flats. These labels reflect a history of cattle ranching and seasonal land use in the California Coast Ranges, where accessibility followed the natural contours of drainage basins like Jack Canyon and Davis Creek.