Western Utah Extension Mine

The Western Utah Extension Mine is a silver and copper mine located in Tooele county, Utah at an elevation of 5,751 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: Western Utah Extension Mine
Secondary: Helmet Claim

Commodity

Primary: Silver
Primary: Copper
Secondary: Gold
Tertiary: Iron
Tertiary: Arsenic

Location

State: Utah
County: Tooele
District: Clifton (Gold Hill) 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: Asarco (American Smelting And Refining Co.)

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Deep Creek Mountains

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: R
Description: Basin And Range

Type: L
Description: Fault (N20w, W) With About 40 Ft Of Throw

Alterations

Alteration Type: L
Alteration Text: Sevier Orogenic Belt

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Jurassic

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Middle Cambrian

Analytical Data

Analytical Data: .026 OZ/TON AU, 5.4 OZ/TON AG, 4.08% CU

Materials

Ore: Sphalerite
Ore: Tenorite
Ore: Pyrite
Ore: Chrysocolla
Ore: Olivenite

Comments

Comment (Workings): SEVERAL CUTS AND PITS AT SOUTH END OF AREA, ALSO SOME SHORT ADITS

References

Reference (Deposit): 1935 GEOLMAP NOLAN PROF. PAPER 177, PL. 2

Reference (Deposit): 1935 MINEMAP NOLAN, T.B., PROF. PAPER 177, P. 146

Reference (Production): NOLAN, T.B., 1935, THE GOLD HILL MINING DISTRICT UTAH, USGS PP 177, P.146-147

Reference (Reserve-Resource): MESSENGER, H.M. III, 1981, ON SITE INVESTIGATION: UTAH GEOL. AND MINERAL SURVEY

Reference (Analytical Data): SRC.REF: NOLAN, T.B., 1935, THE GOLD HILL MINING DISTRICT, UTAH, USGS PP 117, P. 146

Reference (Deposit): NOLAN, T.B., 1935, THE GOLD HILL MINING DISTRICT, UTAH, USGS PP 177, P. 146-147

Reference (Deposit): USBM, 1976, MINERALS AVAILABILITY SYSTEMS REPORT

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