The Cottonwood Grand Central Prospect is a lead and silver mine located in Salt Lake county, Utah at an elevation of 7,441 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: 7,441 Feet (2,268 Meters)
Commodity: Lead, Silver
Lat, Long: 40.65194, -111.64694
Map: View on Google Maps
Satelite View
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.
Cottonwood Grand Central Prospect MRDS details
Site Name
Primary: Cottonwood Grand Central Prospect
Commodity
Primary: Lead
Primary: Silver
Secondary: Molybdenum
Tertiary: Zinc
Location
State: Utah
County: Salt Lake
District: Big Cottonwood District
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: U.S. Forest Service
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains
Physiographic Detail: Wasatch Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: R
Description: N. Flank, Big Cottonwood Uplift
Type: L
Description: Silver Fork Fault
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian
Analytical Data
Analytical Data: 545 ZN
Analytical Data: 125 PPM PB
Analytical Data: 35 PPM MO
Analytical Data: 50PPM CU
Analytical Data: DUMP SAMPLE 3.4 PPM AG
Analytical Data: 1.6 OZ AG/TON
Analytical Data: SAMPLE ASSAYED 7% PB
Materials
Ore: Galena
Ore: Sphalerite
Comments
Comment (Geology): CARBONATE ROCKS EAST OF THE FAULT SHOW LOCALLY INTENSE BLEACHING, WEAK MAGNETIC HIGHS ACROSS THE FAULT
Comment (Location): LOCATED ON THE EAST SIDE OF REYNOLDS GULCH ; INFO FROM LAND.ST :1977
Comment (Workings): IN 1924 THE MAIN TUNNEL WAS 840 FT. IN LENGTH, THE LOWER TUNNEL WAS 250 FT. IN LENGTH A 50 FT. RAISE ABOVE THE MAIN TUNNEL
References
Reference (Deposit): JAMES, L.P., 1979, GEOLOGY, ORE DEPOSITS, AND HISTORY OF THE BIG COTTONWOOD MINING DISTRICT, SALT LAKE CO., UTAH: UTAH GEOL. & MINERAL SURV. BULL-114.
Reference (Deposit): CRITTENDEN, M.D. JR, 1965, GEOLOGY OF THE MOUNT AIRE QUADRANGLE, SALT LAKE CO., UTAH: U.S. GEOLOGICAL SURVEY MAP GQ-379
Reference (Deposit): CALKINS, F.C. AND B.S. BUTLER, 1943, GEOLOGY AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA, UTAH: US. GEOL. SURY. PROF. PAPER 201
Reference (Deposit): BUTLER AND OTHERS, 1920, THE ORE DEPOSITS OF UTAH: U.S GEOL SURVEY PROF. PAPER III
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