
The mining landscape of Copperopolis is the central focus of this survey, illustrating a region defined by its mid-century extraction history and rugged topography. Numerous shafts and mining operations are scattered across the terrain, including the Keystone Mine near the Copperopolis Reservoir and the Empire Mine further south. These operations, alongside sites like the Skyrocket Mine and Napoleon Mine, highlight the extensive prospecting that shaped the local economy and settlement patterns within the Copperopolis Ridge.
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5 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
1915 · Oakdale
USGS Topo · 1:31,680
1916 · Bachelor Valley
USGS Topo · 1:31,680
1916 · Copperopolis
USGS Topo · 1:62,500
1942 · Farmington
USGS Topo · 1:62,500
1942 · Copperopolis
USGS Topo · 1:62,500
1944 · Valley Springs
USGS Topo · 1:62,500