2023 Map of The Geysers
USGS Topo · Published 2023About this map
The Mayacmas Mountains dominate this 2023 survey of a geothermal-rich landscape where Lake, Sonoma, and Mendocino counties converge. The rugged topography is defined by the canyon of Big Sulphur Creek and its many tributaries, such as Little Sulphur Creek and Cobb Creek. This area is renowned for its geothermal activity, centered around the settlement of The Geysers and the nearby Mercuryville. These place names hint at the region's long history of mineral extraction and thermal energy exploitation.
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Map Details
Editions of this 2023 The Geysers 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