Mine detail: Stone Placer Mine

Previously called 'Seven Devils Prospect'

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Location

Lat / long:

39.47055, -105.13808

Resource(M)

Primary:	Uranium
Ore:	Pitchblende

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
Last production ended:	1960

Geology

Host rock:	Idaho Springs Formation-Biotite Gneiss
Host type:	Gneiss
Associated rock:	Basic Dike
Associated type:	Diabase
Structure:	Denver Basin, Front Range Uplift, Floyd Hill Fault Zone
Tectonic:	Central Cordillera (Southern Rocky Mts.)

References

MRDS	D010199
DEP	10101839
Reference	{Deposit:: NELSON-MOORE, J.L., COLLINS, D.B., AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: COLORADO GEOLOGICAL SURVEY BULL. 40, P. 195}{Deposit:: PETERSON, W.L., 1964, GEOLOGY OF THE PLATTE CANYON QUADRANGLE, COLORADO: USGS BULL. 1181-C}{Production:: NELSON-MOORE, ET. AL., 1978}
Reporter	Banke, Carl M.