
Engineer Mountain dominates the high country of the San Juan National Forest, where steep drainages and mountain ridges define the border between San Juan, La Plata, and Dolores counties. The 1960 landscape reflects a mix of early alpine tourism and vital water infrastructure, most notably the water management system indicated by an aqueduct, Siphon, and flume located near the headwaters of Cascade Creek. While much of the terrain is accessible only by a pack trail or the Highline Trail, more established sites like the Columbine Ranger Sta and Mill Creek Lodge suggest the area's role as a seasonal base for forest management and mountain travel. Family names and local history are preserved in labels for Harris Ranch and prominent peaks like Grayrock Peak and Graysill Mountain.
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7 editions found
1897 · Telluride
USGS Topo · 1:62,500
1897 · Silverton
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
1901 · Silverton
USGS Topo · 1:62,500
1902 · Needle Mountains
USGS Topo · 1:62,500
1902 · Silverton
USGS Topo · 1:62,500
1904 · Telluride
USGS Topo · 1:62,500
1908 · Engineer Mountain
USGS Topo · 1:62,500