Mine detail: Rosita Hills District

Previously called 'Rosita, Querida District'

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Location

Lat / long: 38.11862, -105.34779

Resource(B)

Primary: Gold, Silver, Perlite
Secondary: Lead, Zinc, Copper
Tertiary: Aluminum, Potassium

Production

Operation type: Unknown
Development status: Past Producer

Geology

Associated type:Rhyolite,Andesite,Latite,Trachyte,Rhyodacite,Trachyandesite,Volcanic Breccia (Agglomerate)
Structure:Rosita Hills volcanic complex; ring faults; breccia pipes

References

DEP10311016
Reference{Deposit:: Cappa, J.A., 1998, Alkalic igneous rocks of Colorado and their associated ore deposits: Colorado Geological Survey Resource Series 35, 138 p.}{Deposit:: Siems, P.L., 1967, Volcanic and economic geology of the Rosita Hills and Silver cliff districts, Custer County, Colorado: Golden, Colorado School of Mines, D. Sc. dissertation, 222 p.}{Deposit:: McEwan, C.J., Fallick, A.E., and Rice, C.M., 1996, The Rosita Hills epithermal Ag-base metal deposits, Colorado, USA - a stable isotope and fluid inclusion study: Mineral Deposita, v. 31, p. 41-51.}{Deposit:: Emmons, S.F., 1896, The mines of Custer County, Colorado: U.S. Geological Survey 17th Annual Report, Pt. 2, pp. 405-472.}{Geology:: Sharp, W.N., 1978, Geologic map of the Silver Cliff and Rosita volcanic centers, Custer County, Colorado: U.S. Geological Survey Miscellaneous Investigation Series Map I-1081, scale 1:24,000.}{Geology:: Cross, W., 1896, Geology of Silver Cliff and the Rosita Hills, Colorado: U.S. Geological Survey 17th Annual Report, Pt. 2, pp. 263-403.}{Production:: Koschmann, A. H., and Bergendahl, M. H., 1968, Principal gold-producing districts of the United States: U.S. Geological Survey Professional Paper 610, 283 p.}{Reserve-Resource:: Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.}{Reserve-Resource:: Thoenen, J. R., 1941, Alunite resources of the United States: U.S. Bureau of Mines Report of Investigations 3561, 48 p.}
ReporterKeller, John W., Beach, Richard A.