
Middletown serves as the gateway to this portion of Lake County, where the southern reaches of the Collayomi Valley meet the headwaters of Saint Helena Cr and Dry Cr. The landscape is defined by a series of distinct upland basins including Excelsior Valley, Little High Valley, and Coyote Valley, each separated by significant topographic ridges. In the center of the sheet, the planned community of Hidden Valley Lake surrounds its namesake reservoir, with a dense network of roads like Lakeridge Cir and Moon Ridge RD contrasting with the sprawling ranch lands to the north.
119 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.
1927 · Calistoga
USGS Topo · 1:62,500
1942 · St. Helena
USGS Topo · 1:62,500
1943 · Morgan Valley
USGS Topo · 1:62,500
1943 · Calistoga
USGS Topo · 1:62,500
1944 · Morgan Valley
USGS Topo · 1:62,500
1945 · Calistoga
USGS Topo · 1:62,500
1945 · St. Helena
USGS Topo · 1:62,500
1945 · Lower Lake
USGS Topo · 1:62,500
1947 · Santa Rosa
USGS Topo · 1:250,000
1949 · Santa Rosa
USGS Topo · 1:250,000