Sulphur Bank Mine and Borax Lake dominate the northern landscape of this Lake County survey, reflecting the area's complex geothermal and mineral history. The eastern shore of Clear Lake is densely developed around Clearlake Highlands and Clearlake Park, where a tight grid of residential streets like 1st St and San Joaquin Ave meet the water. This 2018 record captures the region's duality as both a recreational destination and a site of significant geological interest.
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This is the sole edition of this map. No revisions or reprints were ever made.
1921 · Kelseyville
USGS Topo · 1:62,500
1924 · Bartlett Springs
USGS Topo · 1:62,500
1938 · Lakeport
USGS Topo · 1:62,500
1942 · Bartlett Springs
USGS Topo · 1:62,500
1943 · Kelseyville
USGS Topo · 1:62,500
1944 · Bartlett Springs
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
1951 · Lakeport
USGS Topo · 1:62,500