The Russian River corridor south of Ukiah serves as the primary artery of this Mendocino County landscape, where the valley floor transitions into the steep elevations of the Mayacmas Mountains and Elledge Peak. The settlement pattern follows the river and transportation lines, with the historic community of El Roble situated at the foot of Burke Hill Rd and Largo marking the southern reach near the confluence of Crawford Cr. This 2018 survey detail shows how modern infrastructure, including the Ukiah Municipal Airport, integrates with older land divisions and agricultural routes like McNab Ranch Rd and Butler Ranch Rd. Smaller watercourses such as McNab Cr, Feliz Cr, and Robinson Cr drain the high country, cutting through the terrain where landmarks like Goat Rock and Cleland Mtn dominate the horizon. The map provides a clear view of the complex road network connecting various ranches and hillsides to the central valley floor.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Ukiah
USGS Topo · 1:62,500
1938 · Hopland
USGS Topo · 1:62,500
1943 · Boonville
USGS Topo · 1:62,500
1943 · Hopland
USGS Topo · 1:62,500
1943 · Ornbaun
USGS Topo · 1:62,500
1944 · Ukiah
USGS Topo · 1:62,500
1944 · Ornbaun
USGS Topo · 1:62,500
1944 · Hopland
USGS Topo · 1:62,500
1947 · Santa Rosa
USGS Topo · 1:250,000
1949 · Santa Rosa
USGS Topo · 1:250,000