Campo Campodonica Italian

  

Mine Info

State: California

County: Mariposa

Elevation:

Primary Mineral: Gold

Lat, Long: 37.39583, -120.00250



Campo Campodonica Italian MRDS details

Site Name

Commodity

Location

Primary: "Campo Campodonica Italian"
Primary: Gold
Secondary: Copper
Secondary: Silver
State: California
County: Mariposa
District:
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type:


Ownership

Production

Deposit

Owner Name: N. L. Wagner, L. G. Corwin, Claude Shafer, Et Al.
Company ID:
Percent:
Home Office:
Info Year:
Years: 1937 - 1939

Year: 1939
Time Period: - 1939
Mined:
Material type: ORE
Description: Cp_Grade: ^.25 Oz/Ton Ag
Year: 1939
Time Period: - 1939
Mined:
Material type: ORE
Description: Cp_Grade: ^.7 Oz/Ton Au
Record Type: Site
Operation Category: Past Producer
Deposit Type:
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: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Physiographic Detail:
Name:
Form: TABULAR


Structure

Alterations

Rocks



Analytical Data

Materials

Ore: Gold
Ore: Silver
Ore: Copper
Gangue: Quartz


Comments

Comment Type:
Production
Comment DISCOVERED IN EARLY GOLD RUSH DAYS. WORKED INTERMITTENTLY UNTIL 1939. IDLE SINCE 1940. IN 1876 ORE FR. THE MILL WAS RUNNING $15.00 PER TON AT PREVAILING PRICE OF GOLD. IN 1896 MINE YIELDED 387 OZ. GOLD FROM UNKNOWN TONNAGE OF ORE. FROM 1937-1939 356 TONS OF ORE WERE MINED WHICH YIELDED 238 OZ. GOLD AND 96 OZ. SILVER. IN 1938 THE OLD DUMP SAMPLED $8.42 PER TON. MAY BE THE WORKINGS SHOWN IN THE NE1/4 OF THE SEC. ON USGS QUAD. HORNITOS, CALIF. 1949
Comment Type:
Workings
Comment INCLINED SHAFT 230 FT. DEEP FROM WHICH A LARGE FOOTAGE OF DRIFTS HAS BEEN DRIVEN.
Comment Type:
Geology
Comment GEOL.DESC: UPPER JUR SLATES AND SCHISTS IN VICINITY, PORPHYRY GREENSTONE FORMS HANGING WALL; SCHIST IS FOOTWALL.
Comment Type:
Deposit
Comment VEIN


References

Reference Category:
Deposit
Pages:
Reference: BOWEN, O. E., JR., & GRAY, H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIF.: CALIF. JOUR. MINES & GEOL., VOL. 53 , NOS. 1 & 2 , P. 82-3 , 248 .
URL:
Reference Category:
Deposit
Pages:
Reference: JULIHN, C. E., & HORTON, F. W., 1940 , MINERAL RESOURCES SURVEY OF THE U. S.: U. S. BUREAU OF MINES BULL. 424 , P. 125 , MINE MAP FACING P. 102 .
URL:
Reference Category:
Production
Pages:
Reference: BOWEN AND GRAY, 1957
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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