Bailey Ridge anchors this portion of Mendocino County, where the high terrain separates the drainage of the S Fork Big River from the headwaters of the Little N Fork Navarro River. The landscape is characterized by a network of timber and access roads, most notably the Masonite Industrial Rd and the Comptche Ukiah Rd, which trace the winding ridges and creek valleys. Named clearings and high-elevation points like Montgomery Flat, Squaw Opening, and Horsethief Opening suggest a history of resource extraction and local land use. Smaller drainages such as Shingle Mill Cr and Hungry Hollow Cr feed into the larger river systems, while remote landmarks like Wohlys Pass and Castle Garden provide specific points of reference for those navigating this complex topography.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Glenblair
USGS Topo · 1:62,500
1922 · Willits
USGS Topo · 1:62,500
1942 · Willits
USGS Topo · 1:62,500
1943 · Glenblair
USGS Topo · 1:62,500
1943 · Boonville
USGS Topo · 1:62,500
1943 · Navarro
USGS Topo · 1:62,500
1944 · Willits
USGS Topo · 1:62,500
1944 · Saddle Point
USGS Topo · 1:62,500
1957 · Ukiah
USGS Topo · 1:250,000
1959 · Boonville
USGS Topo · 1:62,500