
The La Plata Mountains rise sharply in this early 1960s study, where the La Plata River carves a path through the San Juan National Forest. The landscape is heavily marked by Colorado's mining legacy, showing the concentration of extraction points along the river valley near Mayday and Hesperus. Numerous workings such as the Texas Chief Mine, Bay City Mine, and several coal operations like the Coal King Mine illustrate the transition from precious metal prospecting to fuel resources.
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4 editions found
1895 · La Plata
USGS Topo · 1:62,500
1897 · La Plata
USGS Topo · 1:62,500
1898 · Durango
USGS Topo · 1:62,500
1899 · La Plata
USGS Topo · 1:62,500
1907 · Durango
USGS Topo · 1:62,500
1908 · Ignacio
USGS Topo · 1:125,000
1908 · Durango
USGS Topo · 1:62,500
1908 · La Plata
USGS Topo · 1:62,500
1913 · Red Mesa
USGS Topo · 1:62,500
1924 · Ignacio
USGS Topo · 1:125,000