Electra Lake dominates this mountain landscape, held by the Terminal Dam and surrounded by a network of smaller water bodies like Papoose Lake and Ignacio Lake. The terrain is defined by the dramatic drop of the Hermosa Cliffs to the west and the deep drainage of the Animas River to the east. This 2011 survey captures the area as a hub for recreation and resource extraction, showing the Purgatory Ski Area alongside legacy industrial sites such as the American Minerals Mine and the Silver Star Mine. Local infrastructure is well-established around the settlements of Columbine and Tacoma, with several developed campgrounds like Chris Park Organizational Campground and the Tall Timber Resort positioned to take advantage of the canyon and lake views. The map traces the historical patterns of ranching at Columbine Ranch and the early 20th-century water management systems required for mountain life.
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This is the sole edition of this map. No revisions or reprints were ever made.
1898 · Durango
USGS Topo · 1:62,500
1898 · Engineer Mountain
USGS Topo · 1:62,500
1900 · Engineer Mountain
USGS Topo · 1:62,500
1900 · Needle Mountains
USGS Topo · 1:62,500
1902 · Needle Mountains
USGS Topo · 1:62,500
1907 · Durango
USGS Topo · 1:62,500
1908 · Engineer Mountain
USGS Topo · 1:62,500
1908 · Ignacio
USGS Topo · 1:125,000
1908 · Durango
USGS Topo · 1:62,500
1924 · Ignacio
USGS Topo · 1:125,000