
The San Juan Mountains define the northern reaches of this Colorado survey, where narrow gulches and ridges descend toward the La Plata River valley. The high-altitude landscape is marked by a legacy of resource extraction, with numerous workings like the Bay City Mine, Snowslide Mine, and Texas Chief Mine scattered through the steep terrain. These mining operations relied on an intricate network of water management, evidenced by the La Plata and Cherry Creek Ditch and the Big Stick Ditch that traverse the slopes.
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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