Eclipse Shaft and Hirshman Group

The Eclipse Shaft and Hirshman Group is a silver, lead, and copper mine located in Salt Lake county, Utah at an elevation of 9,629 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

Name: Eclipse Shaft and Hirshman Group  

State:  Utah

County:  Salt Lake

Elevation: 9,629 Feet (2,935 Meters)

Primary Mineral: Silver, Lead, Copper

Lat, Long: 40.6025, -111.63750

Map: View on Google Maps

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.


Satelite image of the Eclipse Shaft and Hirshman Group

Eclipse Shaft and Hirshman Group MRDS details

Site Name

Primary: Eclipse Shaft and Hirshman Group


Commodity

Primary: Silver
Primary: Lead
Primary: Copper


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

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Replacement
Operation Type: Unknown
Discovery Year: 1880
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: UNKNOWN


Structure

Type: R
Description: On North Limb Of Uinta Arch, East Of Wasatch Fault

Type: L
Description: Alta Thrust Zone And Superior Faults


Alterations

Not available


Rocks

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

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

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


Analytical Data

Not available


Materials

Ore: Anglesite
Ore: Copper
Ore: Galena
Gangue: Goethite


Comments

Comment (Deposit): THE ORE BODIES ARE AN EXTENSION OF THE FLAGSTAFF-EMMA ZONE AND CONSIST OF REPLACEMENT OF FAVORABLE BEDS OF THE GARDISON AND FITCHVILLE AT THE INTERSECTION WITH MINERALIZED FISSURES.

Comment (Location): THIS IS A NORTH EXTENSION OF THE FLAGSTAFF MINE ; INFO FROM LAND.ST :1973

Comment (Workings): MAIN ACCESS IS THROUGH SHAFT WITH AT LEAST 4 LEVELS DRIVEN SE, TOTAL WORKINGS PROBABLY LESS THAN 3000 FT.


References

Reference (Deposit): CRITTENDEN, M.D. JR., 1965, GEOL. OF THE DROMEDARY PEAK QUAD., UTAH: USGS MAP GQ-378

Reference (Deposit): JAMES, L.P., 1979, GEOLOGY, ORE DEPOSITS AND HISTORY OF THE BIG COTTONWOOD MINING DISTRICT, UTAH: UGMS BULLETIN 114 PG. 74-75

Reference (Deposit): CALKINS, F.C. AND BUTLER, B.S., 1943, GEOL. AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA, UTAH: USGS PROF. PA. 201, P. 121, PLATE 41.