Copper Apex Tunnel

The Copper Apex Tunnel is a copper, silver, and lead mine located in Salt Lake county, Utah at an elevation of 9,701 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: Copper Apex Tunnel
Secondary: Silver King Western
Secondary: Crystal-Elgin
Secondary: Kennelly Ground
Secondary: Scott
Secondary: Silver King Coalition Mines Co.

Commodity

Primary: Copper
Primary: Silver
Primary: Lead
Secondary: Gold
Tertiary: Zinc

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: Underground

Ownership

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

Production

Year: 1908
Time Period: 1906-1908
Material type: ORE
Description: Cp_Grade: ^12.9% Cu, 1.5% Cu, 11.9 Oz/Ton Ag, .018 Oz/Ton Au

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1906
Year Last Production: 1908
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: TABULAR

Form: TABULAR

Structure

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

Type: L
Description: Northeast Striking Fissures, North Striking Dike

Alterations

Alteration Type: L
Alteration Text: Bleaching, Silicification, Iron Staining, Calc-Silicate Formation At Dike Margins, Oxidation

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Triassic

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Analytical Data

Analytical Data: OVERALL ORE GRADES GIVEN IN PRODUCTION SECTION

Materials

Ore: Chalcopyrite
Ore: Gold
Ore: Covellite
Ore: Bornite
Ore: Sphalerite
Ore: Malachite
Ore: Galena
Ore: Argentite
Ore: Anglesite
Gangue: Quartz
Gangue: Hematite
Gangue: Limonite

Comments

Comment (Geology): ENTIRE ADIT SUPPOSEDLY IN WOODSIDE SHALE

Comment (Deposit): Discovery Year: 1870'S

Comment (Location): LOCATED JUST BELOW CRYSTAL-ELGIN INCLINES ; INFO FROM LAND.ST :1983

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

Comment (Deposit): TUNNEL PROBABLY FOLLOWS ONE MAJOR FISSURE DEPOSIT WITH LOCAL PODS OF REPLACEMENT MINERALIZATION. PROBABLY SOME CALC-SILICATE HOSTED MINERALIZATION TOO

Comment (Workings): COPPER APEX TUNNEL DRIVEN IN A N30E DIRECTION

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

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

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