The Keystone-Brooklyn Mine is a silver and gold mine located in Tooele county, Utah at an elevation of 6,460 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Elevation: 6,460 Feet (1,969 Meters)
Primary Mineral: Silver, Gold
Lat, Long: 39.98444, -112.73444
Map: View on Google Maps
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Keystone-Brooklyn Mine MRDS details
Primary: Keystone-Brooklyn Mine
Secondary: Indian Springs Mining Co. Property
District: Erickson District District
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Deposit Size: S
Mineral Deposit Model
Description: Basin And Range
Alteration Type: L
Alteration Text: Silicification
Age Type: Host Rock
Age Young: Late Cambrian
Analytical Data: AU, OZ PER TON, .023
Analytical Data: SELECTED DUMP SAMPLE FROM UPPER ADIT: AG, OZ PER TON , 53
Comment (Deposit): THE SOUTHERN ADITS EXPLORED PYRITE-QUARTZ MINERALIZATION ASSOCOATED WITH A N 80 E VERTICALLY DIPPING, 4 FT. WIDE HEMATITE-STAINED JASPEROID ZONE.
Comment (Production): PRODUCTION REPORTED, BUT NO SPECIFIC AMOUNT CITED
Comment (Workings): SIX ADITS: NORTHERN ADITS, WESTERN (KEYSTONE) PAIR-LOWER S-TRENDING ADIT IS APPROX. 460 FT. LONG, (BROOKLYN) PAIR-(CAVED) APPROX. 400 FT. OF WORKINGS; SOUTHERN PAIR-LOWER IS 80 FT. LONG
Reference (Deposit): MESSENGER, H.M. 3, 1982, 0N-SITE INVESTIGATION: UGMS
Reference (Deposit): THOMAS, G.H., 1958, THE GEOLOGY OF THE INDIAN SPRINGS QUADRANGLE, TOOELE AND JUBA COUNTIES, UTAH: UNPUB. BYU THESIS, PROVO, UTAH
Reference (Deposit): BUREAU OF LAND MANAGEMENT, 1982, MINERAL SURVEY 6269, UTAH STATE OFFICE, SALT LAKE CITY
Reference (Production): USGS, 1917, MINERAL RESOURCES OF U.S., P. 200