The Horseshoe I is a gold mine located in Mariposa county, California at an elevation of 2,500 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
Elevation: 2,500 Feet (762 Meters)
Commodity: Gold
Lat, Long: 37.74806, -120.03500
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.
Horseshoe I MRDS details
Site Name
Primary: Horseshoe I
Secondary: Bower Cave
Commodity
Primary: Gold
Secondary: Zinc
Secondary: Silver
Secondary: Copper
Secondary: Lead
Location
State: California
County: Mariposa
District: East Belt
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Joseph Dupret, Jr. And Irene Dupret
Production
Year: 1953
Material type: ORE
Description: Ap_Grade: ^1.4 Oz Au/Ton 0.3 Oz Ag/Ton
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1867
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
Not available
Structure
Type: L
Description: Metasedimentary Cleavage Strikes Nw, Dips Sw.
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Gold
Ore: Chalcopyrite
Ore: Galena
Ore: Sphalerite
Ore: Pyrite
Comments
Comment (Location): UTM ACC. BASED ON BOWER CAVE, SW 1/4 NW 1/4 SEC. 19 , 2 S, 18 E, COULTERVILLE 15 MINUTE QUAD. 1947 . PROPERTY MAYBE ONE OF 3 , NE 1/4 NE 1/4 SEC 23 , 2 S 17 E JAWBONE RIDGE QUAD 1947 .
Comment (Production): ACTIVE INTERMITTENTLY FROM 1867 - 1913 . REOPENED IN 1951 , ACTIVE SINCE 1953 PRODUCING $13,000 FROM DEVELOPMENT WORK.
Comment (Deposit): TWO QUARTZ VEINS, NEARLY PARALLEL.
Comment (Workings): PRINCIPAL WORKINGS. CROSSCUT ADIT 200 FEET, 125 FEET DEEP, 1500 FEET OF DRIFTS, 50 FOOT WINZE ON S VEIN WITH 130 FEET OF DRIFTS.
Comment (Deposit): PATENTED 20 ACRE CLAIM. SPONGE GOLD SENT TO MINT. SULFIDE CONCENTRATE SENT TO SELBY CA. SMELTER. MINE AND MILL HAND OPERATED BY THREE MEN PROCESSING SIX TONS ORE/DAY. PRESENT ACTIVITY UNKNOWN.
References
Reference (Deposit): AUBURY, L. E., 1904 , REGISTER OF MINES AND MINERALS, MARIPOSA COUNTY CALIFORNIA: CALIFORNIA STATE MINING BUREAU, P. 11 .
Reference (Production): BOWEN & GRAY 1957 , MAURER & WALLACE, 1956 .
Reference (Deposit): BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , PP. 112 - 113 , 270 .
Reference (Deposit): WALLACE, R. E., MCLENEGAN, J. D., MATSON, E. J., 1957 , THE MINERAL INDUSTRY OF CALIFORNIA IN MINERALS YEARBOOK 1954 , VOLUME THREE, AREA REPORTS: U.S. BUREAU OF MINES, P. 220 .
Reference (Deposit): MAURER, R. B., WALLACE, R. E., 1956 , THE MINERAL INDUSTRY OF CALIFORNIA IN MINERALS YEARBOOK 1953 , VOLUME 3 , AREA REPORTS: U.S. BUREAU OF MINES, P. 212 .
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.
