1993 Map of Mount St. Helena
USGS Topo · Published 1993About this map
Mount St Helena dominates this high-elevation landscape where the borders of Sonoma, Lake, and Napa counties converge. The terrain is defined by the steep ridges of the Mayacmas Mountains, featuring prominent landmarks like Pilot Knob and Goat Roost Rock. Geothermal energy production is a visible industry here, evidenced by numerous Geothermal Wells and specialized infrastructure scattered near Big Sulphur Creek.
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Map Details
Editions of this 1993 Mount St. Helena Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1920 · Healdsburg
USGS Topo · 1:62,500
1921 · Kelseyville
USGS Topo · 1:62,500
1927 · Calistoga
USGS Topo · 1:62,500
1933 · Healdsburg
USGS Topo · 1:48,000
1940 · Healdsburg
USGS Topo · 1:62,500
1943 · Calistoga
USGS Topo · 1:62,500
1943 · Kelseyville
USGS Topo · 1:62,500
1945 · Calistoga
USGS Topo · 1:62,500
1945 · Lower Lake
USGS Topo · 1:62,500
1947 · Santa Rosa
USGS Topo · 1:250,000