Cortina Ridge and the high ground of Telegraph Ridge dominate this section of Colusa County, where the hills transition toward the Sacramento Valley floor. The landscape is defined by a series of named flats and canyons, such as Widow Flats, Hamilton Flat, and Fox Canyon, reflecting a long history of ranching and remote settlement. Water sources like Cottonwood Spring and Parry Spring are vital markers in this arid terrain, while the northern edge of the map shows the engineered path of the Tehama Colusa Canal.
47 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1905 · Fairview
USGS Topo · 1:24,000
1907 · Colusa
USGS Topo · 1:62,500
1918 · Williams
USGS Topo · 1:31,680
1918 · Spring Valley
USGS Topo · 1:31,680
1920 · Venado
USGS Topo · 1:62,500
1942 · Colusa
USGS Topo · 1:62,500
1943 · Morgan Valley
USGS Topo · 1:62,500
1944 · Wilbur Springs
USGS Topo · 1:62,500
1944 · Morgan Valley
USGS Topo · 1:62,500
1945 · Rumsey
USGS Topo · 1:62,500