The Campo Campodonica Italian is a gold 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
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.
Campo Campodonica Italian MRDS details
Site Name
Primary: Campo Campodonica Italian
Commodity
Primary: Gold
Secondary: Copper
Secondary: Silver
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: N. L. Wagner, L. G. Corwin, Claude Shafer, Et Al.
Years: 1937 - 1939
Production
Year: 1939
Time Period: - 1939
Material type: ORE
Description: Cp_Grade: ^.25 Oz/Ton Ag
Year: 1939
Time Period: - 1939
Material type: ORE
Description: Cp_Grade: ^.7 Oz/Ton Au
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Ore: Silver
Ore: Copper
Gangue: Quartz
Comments
Comment (Production): 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 (Workings): INCLINED SHAFT 230 FT. DEEP FROM WHICH A LARGE FOOTAGE OF DRIFTS HAS BEEN DRIVEN.
Comment (Geology): GEOL.DESC: UPPER JUR SLATES AND SCHISTS IN VICINITY, PORPHYRY GREENSTONE FORMS HANGING WALL; SCHIST IS FOOTWALL.
Comment (Deposit): VEIN
References
Reference (Deposit): 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 .
Reference (Deposit): 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 .
Reference (Production): BOWEN AND GRAY, 1957
California Gold
"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.
