
The Russian River and Dry Creek dominate this landscape in Sonoma County, carving through a region defined by its viticultural heritage and scattered small settlements. Geyserville sits at the heart of the quadrangle, flanked by the smaller communities of Chianti, Omus, and Nervo. The terrain rises from the river valley toward the prominent heights of Bradford Mtn and Big Ridge, with numerous drainages like Peña Cr and Grape Cr feeding the primary watercourses.
116 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.
1920 · Healdsburg
USGS Topo · 1:62,500
1921 · Skaggs
USGS Topo · 1:62,500
1921 · Kelseyville
USGS Topo · 1:62,500
1933 · Healdsburg
USGS Topo · 1:48,000
1938 · Hopland
USGS Topo · 1:62,500
1940 · Healdsburg
USGS Topo · 1:62,500
1943 · Cazadero
USGS Topo · 1:24,000
1943 · Skaggs Springs
USGS Topo · 1:24,000
1943 · Kelseyville
USGS Topo · 1:62,500
1943 · Hopland
USGS Topo · 1:62,500