Mountain Lake Mine

The Mountain Lake Mine is a copper and iron mine located in Salt Lake county, Utah at an elevation of 9,600 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: Mountain Lake Mine
Secondary: Mountain Lake Group
Secondary: Great Western Mines
Secondary: Great Western Adit
Secondary: Great Western Tunnel

Commodity

Primary: Copper
Primary: Iron
Secondary: Silver
Secondary: Gold
Secondary: Lead
Tertiary: Tungsten

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

Ownership

Owner Name: Great Western Mines Co.
Home Office: Ogden, Ut.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1907
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: IRREGULAR

Structure

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

Type: L
Description: Grizzly Thrust Fault

Alterations

Alteration Type: L
Alteration Text: Calc-Silicate Zone Of Skarn Environment, Oxidation

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian

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

Analytical Data

Analytical Data: 5% CU, MINOR AU AND AG, .25-.30% WO3. SAMPLE OF MASSIVE MAGNETITE CONTAINS 7.78 PPM AG, 0.031 PPM AU, 2250 PPM CU, 2 PPM MO, 15 PPM PB, 250 PPM ZN, 65 PPM CO, AND 70 PPM NI.

Materials

Ore: Argentite
Ore: Scheelite
Ore: Magnetite
Ore: Pyrite
Ore: Galena
Ore: Gold
Ore: Chalcopyrite
Ore: Malachite
Ore: Bornite
Gangue: Phlogopite
Gangue: Tremolite
Gangue: Forsterite
Gangue: Garnet
Gangue: Serpentine
Gangue: Chlorite
Gangue: Actinolite
Gangue: Epidote
Gangue: Talc

Comments

Comment (Location): TOWNSHIP IS UNSURVEYED ; INFO FROM LAND.ST :1983

Comment (Deposit): Discovery Year: LATE 1800'S

Comment (Workings): WORKINGS CONSIST OF A MAIN INCLINE AND SEVERAL SIDE DRIFTS AND STOPES. MAIN INCLINE FOLLOWED ORE DOWN TO A DEPTH OF 300 FT.

Comment (Geology): CARBONATES FORM A ROOF PENDANT SUSPENDED BETWEEN THE ALTA STOCK TO THE NORTHWEST AND THE CLAYTON PEAK STOCK TO THE SOUTHEAST. SOME UNUSUAL BORATES, LUDWIGITE AND MAGNESIO LUDWIGITE ARE ABUNDANT. OTHER UNUSUAL MINERALS SUCH AS EPHESITE, SUSSEXITE, XANTHOPHYLLITE AND HYDROMAGNESITE MAY ALSO BE PRESENT. THE SKARN ZONE IS ABOUT 50 FT. THICK.

Comment (Development): WASATCH NATIONAL FOREST OWNS THE SURFACE RIGHTS

Comment (Production): SEVERAL RAILROAD CAR LOADS OF ORE SHIPPED IN 1907 OR 1908. ORE WAS CARBONATE-HOSTED, CU AND FE RICH MATERIAL

Comment (Deposit): DEPOSIT OCCURS ALONG CONTACT BETWEEN MISSISSIPPIAN LIMESTONE AND THE CLAYTON PEAK STOCK. THE METASOMATIC-REPLACEMENT MINERALIZATION IS MAGNETITE RICH WITH UP TO 5%

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 (Deposit): CRAWFORD, A.L., AND BURANEK, A.M., 1957, TUNGSTEN RESERVES DISCOVERED IN THE COTTONWOOD-AMERICAN FORK MINING DISTRICTS, UTAH: UTAH GEOL. AND MIN. SURVEY REPRINT NO. 55.

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

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