City of Rocks Mine

The City of Rocks Mine is a uranium and feldspar mine located in Cassia county, Idaho at an elevation of 6,401 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: City of Rocks Mine  

State:  Idaho

County:  Cassia

Elevation: 6,401 Feet (1,951 Meters)

Primary Mineral: Uranium, Feldspar

Lat, Long: 42.0475, -113.73470

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 City of Rocks Mine

City of Rocks Mine MRDS details

Site Name

Primary: City of Rocks Mine


Commodity

Primary: Uranium
Primary: Feldspar
Tertiary: Beryllium
Tertiary: Thorium


Location

State: Idaho
County: Cassia
District: Almo Area


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

Not available


Ownership

Not available


Production

Not available


Deposit

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


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Snake River Plain
Physiographic Detail: Silent City Of Rocks


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous


Analytical Data

Not available


Materials

Ore: Pegmatite
Gangue: Muscovite
Gangue: Plagioclase
Gangue: Garnet
Gangue: Quartz


Comments

Not available


References

Reference (Deposit): Lesure, F. G., 1964, Mica And Associated Pegmatite Minerals, In Mineral And Water Resources Of Idaho: Idaho Bureau Of Mines And Geology Special Rept. No. 1, P. 129.

Reference (Deposit): Minobras, 1975, Idaho Industrial Minerals, P. 30.

Reference (Deposit): Fryklund, V. C., Jr., 1951, A Reconnaissance Of Some Idaho Feldspar Deposits: Idaho Bureau Of Mines And Geology Pamphlet 91, P. 16.


Idaho Gold

Where to Find Gold in Idaho

"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more at Where to Find Gold in Idaho.