
Valley Springs serves as the hub of this Calaveras County landscape, where the Southern Pacific railroad transitions into the foothills of the Bear Mountains and Gopher Ridge. The early 1960s marked a period of massive hydrological change for the region, as indicated by the planned inundation zones for both the New Hogan Reservoir on the Calaveras River and the Camanche Reservoir downstream on the Mokelumne River. These rising waters were set to reshape the landscape around historical mining sites and early settlements. Traces of the region's industrial past are visible in the numerous Claypits, the Penn Mine near Campo Seco, and the McCarty Mine. The map captures a moment when traditional rail transport and mining infrastructure met the modern era of large-scale water management projects like New Hogan Dam and Camp Pardee.
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3 editions found
1889 · Jackson
USGS Topo · 1:125,000
1892 · Jackson
USGS Topo · 1:125,000
1897 · Jackson
USGS Topo · 1:125,000
1902 · Jackson
USGS Topo · 1:125,000
1941 · Sutter Creek
USGS Topo · 1:62,500
1944 · Valley Springs
USGS Topo · 1:62,500
1944 · Sutter Creek
USGS Topo · 1:62,500
1945 · San Andreas
USGS Topo · 1:62,500
1947 · San Andreas
USGS Topo · 1:62,500
1947 · Sacramento
USGS Topo · 1:250,000