
Warm Springs Dam (Under Construction) stands as the centerpiece of this landscape, marking a period of massive hydrological change in Sonoma County. This survey captures the valley as Lake Sonoma began to take shape, eventually submerging portions of the Dry Creek and Warm Springs Creek drainages. The map serves as a vital record for researchers studying the geography before the full inundation of the area, showing the original course of waterways and the early footprints of infrastructure like Rockpile Road.
27 named features on this map. Tap any name to fly to it.
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3 editions found
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 · Tombs Creek
USGS Topo · 1:24,000
1943 · Cazadero
USGS Topo · 1:24,000
1943 · Skaggs Springs
USGS Topo · 1:24,000
1943 · Fort Ross
USGS Topo · 1:24,000