
Bartlett Springs and its neighboring mineral water resorts define this mountainous landscape in Lake County. Surveyed by the Corps of Engineers just before the 1920s, the map reveals a remote network of springs and creeks tucked between the Goat Mountain Range and the northern reaches of Clear Lake. The presence of Allen Springs and Hough Springs further east indicates the era's reliance on these natural features as significant destinations for tourism and health. The terrain is marked by deep drainage basins like Long Valley Creek and the meandering Cache Creek, which flow toward the broad Indian Valley to the east. This tactical map, overseen by Col. Thos. H. Jackson, provides a rare look at the early road system connecting these isolated settlements before modern highway development changed the region's accessibility.
17 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 · Venado
USGS Topo · 1:62,500
1921 · Kelseyville
USGS Topo · 1:62,500
1922 · Hullville
USGS Topo · 1:62,500
1938 · Lakeport
USGS Topo · 1:62,500
1942 · Bartlett Springs
USGS Topo · 1:62,500
1943 · Morgan Valley
USGS Topo · 1:62,500
1943 · Lodoga
USGS Topo · 1:62,500
1943 · Kelseyville
USGS Topo · 1:62,500
1944 · Bartlett Springs
USGS Topo · 1:62,500
1944 · Wilbur Springs
USGS Topo · 1:62,500