White Rock

The White Rock is a copper mine located in Mariposa county, California.

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: White Rock  

State:  California

County:  Mariposa

Elevation:

Commodity: Copper

Lat, Long: 37.33083, -120.08361

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 White Rock

White Rock MRDS details

Site Name

Primary: White Rock
Secondary: Copper King
Secondary: White Knob


Commodity

Primary: Copper
Secondary: Gold
Secondary: Silver


Location

State: California
County: Mariposa


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Owner Name: James Helm
Years: 1943 -


Production

Not available


Deposit

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


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Not available


Analytical Data

Not available


Materials

Not available


Comments

Comment (Production): SEVERAL CARLOADS OF ORE WHERE SHIPPED 1900 - 1902 , YIELDED 35 % CU, ONE CARLOAD RAN 40 % CU. OXIDIZED ORE CARRIED $1.50 - $2.50 AU/TON (OLD PRICE OF AU) AND 3 1/2 OZ/TON AG

Comment (Deposit): OXIDE AND CARBONATE ORE REACHES DEPTH OF 100 FT., SULFIDES BELOW THAT DEPTH.

Comment (Workings): PRINCIPAL WORKING: 150 FT. SHAFT WITH 175 FT. OF DRIFTS. NUMEROUS MINOR WORKINGS

Comment (Deposit): REPORTED TO BE A PATENTED MINE BUT NOT ON COUNTY ASSESSOR'S LIST IN 1954.


References

Reference (Deposit): AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 262 - 264 .

Reference (Deposit): BOWEN, O. E. AND CLIFFTON, G. H., 1957 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY, CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 1 & 2 , P. 231 .

Reference (Production): BOWEN AND CLIFFTON, 1957 , P. 231 (SEE REF.)


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.