Mine detail: Hahns Peak District

Previously called 'Columbine'

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Location

Lat / long:

40.84275, -106.92925

Resource(M)

Primary:	Gold
Secondary:	Silver, Lead, Zinc
Tertiary:	Copper, Molybdenum
Ore:	Galena, Pyrite, Sphalerite, Tetrahedrite
Gangue:	Variscite, Wavellite

Production

Operation type:	Unknown
Development status:	Prospect

Geology

Host rock:	dacite, quartz latite, and rhyolite intrusive porphyry of Hahns Peak
Host type:	Porphyry
Associated rock:	Morrison and Sundance Formations, Dakota Sandstone, Mancos Shale, Browns Park Formation, mafic dikes
Associated type:	Clastic Sedimentary Rock,Sandstone,Shale,Mafic Intrusive Rock
Structure:	breccia pipe in porphyry stock
Alteration processes:	silicification, sericitization, kaolinitization, pyritization

References

DEP	10311069
Reference	{Deposit:: George, R. D., and Crawford, R. D., 1909, The Hahns Peak region, Routt County, Colorado: Colorado Geological Survey First Report, 1908, p. 189-229.}{Deposit:: Neubert, J. T., 1994, Mineral appraisal of Routt National Forest, Colorado: U.S. Bureau of Mines Open File Report MLA 13-94, 64 p., appendicies.}{Reserve-Resource:: Young, E. J., and Segerstrom, K., 1973, A disseminated silver-lead-zinc sulfide occurrence at Hahns Peak, Routt County, Colorado: U.S. Geological Survey Bulletin 1367, 33 p.}
Reporter	Beach, Richard A.