Mine detail: Little Mattie-Newton Group

Previously called 'General ThomasDecatorSilver GlanceLittle MattieGreat RepublicanNewtonWild Rose'

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Location

Lat / long:

39.73305, -105.55726

Resource(M)

Primary:	Gold, Silver, Lead, Zinc
Secondary:	Copper
Ore:	Chalcopyrite, Galena, Gold, Sphalerite, Tennantite
Gangue:	Pyrite, Quartz

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Yes
Development status:	Past Producer

Geology

Host rock:	Idaho Springs Formation
Host type:	Gneiss,Pegmatite,Porphyry

References

MRDS	DC05291
DEP	10108392
Reference	{Deposit:: Spurr, J. E., Garrey, G. H., and Ball, S. H., 1908, Economic geology of the Georgetown quadrangle, Colorado: U.S. Geological Survey Professional Paper 63, 422 p.}{Deposit:: BLM CONNECTING SHEETS}{Deposit:: USGS BULL. 1208, 1966}{Deposit:: USGS OPEN-FILE REPT. 835, 1966}{Deposit:: Harrison, J. E., and Wells, J. D., 1959, Geology and ore deposits of the Chicago Creek area, Clear Creek County, Colorado: U.S. Geological Survey Professional Paper 319, 92 p.}{Deposit:: Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.}
Reporter	Melton, Greg, Conservation Division Files, Beach, Richard A.