White Rock

  

Mine Info

State: California

County: Mariposa

Elevation:

Primary Mineral: Copper

Lat, Long: 37.33083, -120.08361



White Rock MRDS details

Site Name

Commodity

Location

Primary: "White Rock"
Secondary: "Copper King"
Secondary: "White Knob"
Primary: Copper
Secondary: Gold
Secondary: Silver
State: California
County: Mariposa
District:
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type: Underground


Ownership

Production

Deposit

Owner Name: James Helm
Company ID:
Percent:
Home Office:
Info Year:
Years: 1943 -

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Plant Type:
Plant Subtype:
Operation Type: Unknown
Mining Method:
Milling Method:
Year First Production:
Year Last Production:
Discovery Year:
Discovery Method:
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

Mineral Deposit Model

Orebody

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


Structure

Alterations

Rocks



Analytical Data

Materials



Comments

Comment Type:
Production
Comment 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 Type:
Deposit
Comment OXIDE AND CARBONATE ORE REACHES DEPTH OF 100 FT., SULFIDES BELOW THAT DEPTH.
Comment Type:
Workings
Comment PRINCIPAL WORKING: 150 FT. SHAFT WITH 175 FT. OF DRIFTS. NUMEROUS MINOR WORKINGS
Comment Type:
Deposit
Comment REPORTED TO BE A PATENTED MINE BUT NOT ON COUNTY ASSESSOR'S LIST IN 1954.


References

Reference Category:
Deposit
Pages:
Reference: AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 262 - 264 .
URL:
Reference Category:
Deposit
Pages:
Reference: 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 .
URL:
Reference Category:
Production
Pages:
Reference: BOWEN AND CLIFFTON, 1957 , P. 231 (SEE REF.)
URL:

Did You Know.......

A mine is a hole in the ground, owned by a liar.
-Mark Twain

About The MRDS Mines Database

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.

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