Hough Springs serves as a primary reference point in this landscape where the high ridges of the Mendocino National Forest meet the southern water systems of Lake County. The terrain is defined by a series of prominent glades and ridges, including Wyley Glade, East Glade, and Soapstone Ridge, which separate the various forks of Spanish Creek and Mill Creek. The southern portion of the map is dominated by the Indian Valley Reservoir, where Kilpepper Creek and North Fork Cache Creek converge. This area shows a complex network of seasonal water sources such as Complexion Spring and Dead Shot Spring, illustrating the importance of reliable water in these mountain canyons. Historic movement through the area is traced by the Colusa Co Road (Goat Mtn) and the Pacific Ridge road, connecting remote points like Davis Flat to the larger valley systems.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Venado
USGS Topo · 1:62,500
1924 · Bartlett Springs
USGS Topo · 1:62,500
1942 · Bartlett Springs
USGS Topo · 1:62,500
1943 · Lodoga
USGS Topo · 1:62,500
1944 · Bartlett Springs
USGS Topo · 1:62,500
1944 · Wilbur Springs
USGS Topo · 1:62,500
1951 · Stonyford
USGS Topo · 1:62,500
1957 · Ukiah
USGS Topo · 1:250,000
1958 · Clearlake Oaks
USGS Topo · 1:24,000
1960 · Ukiah
USGS Topo · 1:250,000