Sweeney Prospect

The Sweeney Prospect is a copper, gold, and silver mine located in Modoc county, California at an elevation of 5,200 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: Sweeney Prospect  

State:  California

County:  Modoc

Elevation: 5,200 Feet (1,585 Meters)

Commodity: Copper, Gold, Silver

Lat, Long: 41.90806, -120.14167

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 Sweeney Prospect

Sweeney Prospect MRDS details

Site Name

Primary: Sweeney Prospect


Commodity

Primary: Copper
Primary: Gold
Primary: Silver


Location

State: California
County: Modoc


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Producer
Deposit Type: Unknown
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

Not available


Mineral Deposit Model

Not available


Orebody

Form: VEINS


Structure

Not available


Alterations

Not available


Rocks

Name: Rhyolite
Role: Host
Age Type: Host Rock
Age Young: Pliocene


Analytical Data

Analytical Data: AVERAGE ASSAYS $10-15/TON AU+AG, 1% CU. PICKED PIECE ASSAYED $137/TON


Materials

Ore: Gold
Gangue: Quartz


Comments

Comment (Deposit): 3 VEINS. THE TYPE OF DEPOSIT IS UNKNOWN; USGS MODEL MAY ALSO BE 25A: HOT-SPRING AU-AG.

Comment (Location): ON SOUTHEAST SLOPE OF BIDWELL PEAK AT NORTH END OF SURPRISE VALLEY

Comment (Workings): 200 FT TUNNEL


References

Reference (Deposit): AVERILL, C.V., 1929, MODOC COUNTY, IN 25TH REPORT OF THE STATE MINERALOGIST: CALIFORNIA DIVISION OF MINES AND MINING, P. 16


California Gold

Where to Find Gold in California

"Where to Find Gold in California" 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 California. Read more: Where to Find Gold in California.