
Howardsville and Middleton anchor this mid-century survey of the high San Juan Mountains, where the landscape is defined by a dense concentration of hard-rock mining operations. The map documents an intensive extraction economy, noting both historic sites and those still in operation, such as the Osceola Mine (Active) and Pride of the West Mine (Active). Heavy industry footprints like the Pride of the West Mill and the Unity Tunnel are shown alongside the intricate network of aerial tramways and pack trails that connected these remote sites to the valley floor.
85 named features on this map. Tap any name to fly to it.
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8 editions found
1897 · Silverton
USGS Topo · 1:62,500
1900 · Needle Mountains
USGS Topo · 1:62,500
1901 · Silverton
USGS Topo · 1:62,500
1902 · Needle Mountains
USGS Topo · 1:62,500
1902 · Silverton
USGS Topo · 1:62,500
1905 · San Cristobal
USGS Topo · 1:125,000
1907 · San Cristobal
USGS Topo · 1:125,000
1945 · Durango
USGS Topo · 1:250,000
1953 · Durango
USGS Topo · 1:250,000
1954 · Durango
USGS Topo · 1:250,000