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Niagara Mine

All mine locations were obtained from the USGS place names database. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property. 		Find us on Facebook Get regular updates on the WMH Facebook page

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State: Colorado
County: Boulder
Elevation: 8,510 feet
Latitude: 39.9763758
Longitude: -105.5255540
Type: Tungsten


Location: Altitude, about 8,530 it; 800 ft S. 62° E. of Illinois.

Geology: Shaft workings on vein that strikes N. 77° E. and dips 85° S.; open-cut and tunnel 100 ft farther south on vein that strikes N. 50° E. and dips 80° NW. (pI. 5). These upper workings are in granite, but a drift that enters below them from the Illinois Extension shaft is in schist.

History and production: Open-cut and tunnel workings old; most of work at shaft done by Wolf Tongue Mining Co., the owner, in 1943. Mine moderately productive.

Source: Geology and Ore Deposits of the Boulder County Tungsten District Colorado. USGS Professional Paper 245, 1953
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