Iowa Copper Mine

The Iowa Copper Mine is a copper, gold, and silver mine located in Salt Lake county, Utah at an elevation of 9,009 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

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.

Site Name

Primary: Iowa Copper Mine
Secondary: Silver King Western

Commodity

Primary: Copper
Primary: Gold
Primary: Silver

Location

State: Utah
County: Salt Lake
District: Big Cottonwood District

Land Status

Land ownership: Private
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: Surface/Underground

Ownership

Owner Name: Silver King Western Manufacturing Co.
Home Office: Salt Lake City, UT

Production

Year: 1920
Time Period: 1909-1920
Material type: ORE
Description: Cp_Grade: ^6.3% Cu, .051 Oz/Ton Au, 3.53 Oz/Ton Ag

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1906
Year Last Production: 1920
Discovery Year: 1875
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: POD

Form: POD

Structure

Type: R
Description: Uinta-Cottonwood Arch, Cordilleran Hingeline, Sevier Overthrust Belt

Type: L
Description: Several Northeast Striking Normal Faults

Alterations

Alteration Type: L
Alteration Text: Silicification Of Breccia, Iron-Staining, Calc-Silicate Development Near Fissures, Oxidation

Rocks

Name: Shale
Role: Host
Age Type: Associated Rock
Age Young: Pliocene

Analytical Data

Analytical Data: OVERALL GRADE OF ORE IS 6.3% CU, .051 OZ/TON AU, 3.53 OZ/TON AG

Materials

Ore: Malachite
Ore: Chalcopyrite
Ore: Chrysocolla
Gangue: Limonite
Gangue: Hematite
Gangue: Quartz
Gangue: Pyrite

Comments

Comment (Workings): MAIN TUNNEL DRIVEN IN A NORTHEAST DIRECTION FOR 1200 FT, VARIOUS OTHER DRIFTS TOTAL 1800 FT IN LENGTH. NUMEROUS SHALLOW PROSPECT PITS AND ONE SHALLOW SHAFT COMPRISE REST OF WORKINGS. SHAFT SHOWN ON MAP. TUNNEL IS OPEN AND BEING MAINTAINED FOR EXPLORATION BY SILVER KING WESTERN COMPANY

Comment (Geology): BEDDING IS AT N15E, 25NW. CONTACT OF PORPHYRITIC PHASE OF THE ALTA STOCK IS ONLY 500 FT SOUTH OF THE PORTAL. NO DIKES IDENTIFIED IN MINE AREA

Comment (Deposit): SEVERAL NORTHEAST STRIKING FRACTURES APPEAR TO HAVE SUPPLIED SOLUTIONS WHICH CAUSED REPLACEMENT-TYPE MINERALIZATION IN CALCAREOUS BEDS NEXT TO FRACTURES. DOMINANT TYPE OF MINERALIZATION IS REPLACEMENT-TYPE. THIS AREA IS SOMEWHAT UNIQUE IN THAT THE DOMINANT ORES ARE CU AND AU AND ALTERATION AT THE SURFACE CONSISTS OF SILICIFIED, IRON-STAINED BRECCIAS.

Comment (Location): SHAFT HAS UTM COORDINATES OF 4496350N, 451600E ; INFO FROM LAND.ST :1983

Comment (Deposit): Discovery Year: 1870'S

Comment (Production): ORE PRODUCED OR RECORDED IN 1909 AND FROM 1916 TO 1920

Comment (Development): SILVER KING WESTERN COMPANY IS CURRENTLY EXPLORING FOR PB-AG ORE. THEY BELIEVE THAT THERE MAY BE AN OREBODY ON THE PROPERTY

References

Reference (Deposit): JAMES, L.P., 1979, GEOLOGY, ORE DEPOSITS, AND HISTORY OF THE BIG COTTONWOOD MINING DISTRICT, SALT LAKE COUNTY, UTAH: U.G.M.S. BULL. NO. 114.

Reference (Deposit): CALKINS, F.C., AND BUTLER, B.S., 1943, GEOLOGY AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA, UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 201.

Reference (Deposit): BUTLER, B.S., LOUGHLIN, G.F., HEIKES, V.C., AND OTHERS, 1920, THE ORE DEPOSITS OF UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 111.

Reference (Deposit): BAKER, A.A., CALKINS, F.C., CRITTENDEN, M.D., JR., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-534

Reference (Production): JAMES, L.P., 1979

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