Lake Sonoma dominates this part of Sonoma County, its intricate shoreline reflecting the flooded valleys of Dry Cr and Rockpile Cr. The 2012 survey illustrates the area following the completion of the Warm Springs Dam, which transformed the local geography. Before the reservoir, the region was defined by its mineral springs and steep ridges, traces of which remain in names like Skaggs Springs and Willow Spring. High points such as Bummer Peak and Eagle Rock offer a sense of the verticality that persists around the water. The map records a transition from the historic springs economy to contemporary water management and recreation. To the south, deep drainages like Redwood Canyon and Wildcat Canyon converge near Reese Gap, showing the complex watershed that feeds into E Austin Cr.
37 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 · 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