Mine detail: Grand Union Tunnel

Previously called 'Silver Bowl'

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Location: Summit County, Colorado, United States, North America
Lat / long: 39.38221, -106.20561
dep_id: 10091357
mrds_id: DC04054
Commodity type: metallic
Major mineral: Zinc, Silver, Lead
Operation type: Unknown
Production size: No production occurred
Development status: Occurrence
Reporter: Conservation Division Files, Wilson, Anna B.
References:
  • Deposit:: KOSCHMANN, A.H. AND WELL, F.G., 1946, PRELIMINARY REPORT ON THE KOKOMO MINING DISTRICT, COLORADO: COLORADO SCIENTIFIC SOCIETY PROCEEDINGS, VOL. 15, NO. 2, P. 51-112.
  • Deposit:: U.S. GEOLOGICAL SURVEY, 1942, TENMILE MINING DISTRICT, COLORADO: U.S. GEOLOGICAL SURVEY (UNCLASSIFIED MAP), SCALE: 1:12,000.
  • Deposit:: CONSV. DIV. COMP. DATE, 8,65
  • Deposit:: EMMONS, S.F., 1898, GEOLOGIC ATLAS OF THE UNITED STATES - TNEMILE DISTRICT SPECIAL FOLIO, COLORADO: U.S. GEOLOGICAL SURVEY FOLIO 48.
  • 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.
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