Mine detail: Pennsylvania Mine

Previously called 'Rothschild (Minerou) TunnelCongress'

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Location

Lat / long: 39.59999, -105.80949

Resource(M)

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

Production

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

Geology

Host rock:Idaho Springs Formation, Silver Plume Granite, Montezuma quartz monzonite stock
Host type:Schist,Gneiss,Granitoid,Porphyry
Structure:ore localized in competent gneiss wall rock
Alteration processes:wall rocks are silicified, pyritized

References

MRDSDC05609
DEP10108421
Reference{Deposit:: LOVERING, T.S., 1935, GEOLOGY AND ORE DEPOSITS OF THE MONTEZUMA QUADRANGLE, COLORADO: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 178, 119 P. page 78}{Deposit:: LOVERING, T.S., AND GODDARD, E.N., 1950, GEOLOGY AND ORE DEPOSITS OF THE FRONT RANGE, COLORADO: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 223, 319 P.}{Deposit:: CONSV. DIV. COMP. DATE, 8,65}{Deposit:: NEUERBERG, G.J., BOTINELLY, THEODORE, AND ANALYSIS, 1977, SELECTED GEOCHEMICAL AND PETROGRAPHIC DATA FOR CHARACTERIZING THE MINERALIZED ROCKS OF THE MONTEZUMA MINING DISTRICT, CENTRAL COLORADO: U.S. GEOLOGICAL SURVEY OPEN FILE REPORT 77-425.}{Deposit:: WILSON, ANNA B., AND LAROCK, EDWARD J., 1991, ASCII DATABASE FOR PRINCIPAL LODE MINES AND MINERALIZED AREAS IN SOUTHERN SUMMIT COUNTY, COLORADO, U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 91-0027A AND B, 22 P. AND ONE DISKETTE.}{Deposit:: WILSON, ANNA B., AND LAROCK, EDWARD J., IN PRESS, MINERALIZED AREAS AND PRINCIPAL LODE MINES IN SOUTHERN SUMMIT COUNTY, COLORADO, U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-2163, SCALE 1:50,000.}{Deposit:: Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.}
ReporterMelton, Greg, Conservation Division Files, Wilson, Anna B., Beach, Richard A.