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.
Mine Info
Elevation: 6,460 Feet (1,969 Meters)
Commodity: Silver, Gold
Lat, Long: 39.98444, -112.73444
Map: View on Google Maps
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Keystone-Brooklyn Mine MRDS details
Site Name
Primary: Keystone-Brooklyn Mine
Secondary: Indian Springs Mining Co. Property
Commodity
Primary: Silver
Primary: Gold
Location
State: Utah
County: Tooele
District: Erickson District District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Form: TABULAR
Structure
Type: R
Description: Basin And Range
Alterations
Alteration Type: L
Alteration Text: Silicification
Rocks
Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian
Analytical Data
Analytical Data: AU, OZ PER TON, .023
Analytical Data: SELECTED DUMP SAMPLE FROM UPPER ADIT: AG, OZ PER TON , 53
Materials
Gangue: Quartz
Gangue: Hematite
Gangue: Limonite
Comments
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
References
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
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
