Magnolia and the high mountain settlements west of Boulder are defined by a complex history of mining and water management. Numerous named shafts like the Tungsten Group Mine, Ophir Mine, and Mountain Lion Mine cluster in the northwest, illustrating the intense extraction that once drove the local economy. The landscape is dominated by the massive Gross Reservoir, held by the Gross Dam, and the sharp eastern rise of The Flatirons. To the south, residential enclaves such as Crescent Village, Copperdale, and Twin Spruce follow the winding course of Coal Creek Canyon. The map captures the interface between the urban edge of Boulder and the vertical terrain of South Boulder Peak, showing how infrastructure like the Community Ditch and South Boulder Foothills Ditch weaves through the foothills to serve the plains below.
126 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1899 · West Denver
USGS Topo · 1:125,000
1902 · Boulder
USGS Topo · 1:62,500
1904 · Niwot
USGS Topo · 1:62,500
1904 · Boulder
USGS Topo · 1:62,500
1906 · Blackhawk
USGS Topo · 1:62,500
1939 · Golden
USGS Topo · 1:24,000
1942 · Eldorado Springs
USGS Topo · 1:24,000
1942 · Golden
USGS Topo · 1:31,680
1942 · Louisville
USGS Topo · 1:31,680
1942 · Tungsten
USGS Topo · 1:24,000