Michigan-Utah Mine

The Michigan-Utah Mine is a silver and lead mine located in Salt Lake county, Utah at an elevation of 9,400 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: Michigan-Utah Mine
Secondary: Solitude Tunnel
Secondary: Butte Mine
Secondary: Oregon-Black Bess Group

Commodity

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

Location

State: Utah
County: Salt Lake
District: Little Cottonwood 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
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: L
Description: Grizzly Thrust Zone And Another Higher Thrust Zone; Silver Fork Fault; Ne Dikes; Beds Dip At 10 E Above Thrust Zone And 20 - 30 E Below The Thrust Zone; City Rocks Fissure, Grizzly - Lavinia Fissure (N 40 E, Steep N)

Alterations

Alteration Type: L
Alteration Text: Dioritic Dikes Are Metamorphosed To Diopside And Reddish Brown Garnet. Contact Alteration Has Occurred Along The Contacts Of Limestone And Intrusives.

Rocks

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

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

Analytical Data

Analytical Data: 1919 : AVG. $.52 AU, 16.5 OZ AG, 9.12 % PB, 1.2 % CU PER TON. MANGANESE ORE AVERAGE 38.5

Materials

Ore: Argentite
Ore: Chalcopyrite
Ore: Plumbojarosite
Ore: Hemimorphite
Ore: Calamine
Ore: Wulfenite
Ore: Anglesite
Ore: Malachite
Ore: Smithsonite
Ore: Galena
Ore: Jamesonite

Comments

Comment (Location): INCLUDES 70 CLAIMS, SOME ARE BLACK BESS, CITY ROCKS, UTAH MINES COALITION, LAVINIA, GRIZZLY, DARLINGTON, REGULATOR, AND CONTINENTAL - ALTA OR UNITY MINING COS.

Comment (Commodity): WULFENITE OCCURS IN THE CRUSHED ZONES

Comment (Production): A TOTAL OF 621 LONG TONS OF MANGANESE ORE WERE MINED

Comment (Deposit): MINERALIZATION OCCURS ALONG THE INTERSECTION OF FISSURES WITH CERTAIN LIMESTONE BEDS. IN THE BUTTE PORTION OF THE MINE, ORE OCCURS AS 8-10 LENTICULAR BODIES.

Comment (Workings): TOTAL OF 65,000 FT OF WORKINGS INCLUDING THE SOLITUDE TUNNEL AND CLEVES TUNNEL.

Comment (Geology): GEOL.DESC: CITY ROCKS VEIN

References

Reference (Deposit): 5) CRITTENDEN,M.D.,JR., 1951, MANGANESE DEPOSITS OF W. UTAH: USGS BULL. 979-A, P. 35.

Reference (Deposit): CALKINS,F.C. & BUTLER,B.S., 1943, GEOLOGY AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA: USGS PROF. PAPER 201, P. 131-133.

Reference (Deposit): 6) HESS,F.L., 1906, RARE METALS- SOME MOLYBDENUM DEPOSITS OF MAINE, UTAH, & CALIF.: USGS BULL. 340, P. 238.

Reference (Deposit): 7) USGS MINERAL RESOURCE YEARBOOK 1916-23; USBM MINERAL RESOURCE YEARBOOK 1924-49

Reference (Deposit): JAMES,L.P., 1979, GEOLOGY, ORE DEPOSITS, AND HISTORY OF THE BIG COTTONWOOD MINING DISTRICT: UTAH GEOL. & MIN. SURV., BULL. 114, P. 79-81.

Reference (Deposit): BUTLER,B.S. & LOUGHLIN,G.F., 1916, A RECON. OF THE COTTONWOOD-AMERICAN FORK MINING REGION: USGS BULL. 620, P. 187.

Reference (Deposit): HEYL,A.V., 1963, OXIDIZED ZINC DEPOSITS OF THE U.S.: USGS BULL. 1135-B, P. 47.

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