The Argo Pioneer is a gold mine located in Mariposa county, California at an elevation of 3,127 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: 3,127 Feet (953 Meters)
Commodity: Gold
Lat, Long: 37.76472, -120.09167
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.
Argo Pioneer MRDS details
Site Name
Primary: Argo Pioneer
Secondary: Pioneer
Commodity
Primary: Gold
Location
State: California
County: Mariposa
District: Greeleyhill
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Walter D. Mclean
Production
Not available
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: PINCH & SWELL
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Gold
Gangue: Quartz
Comments
Comment (Geology): GEOL.DESC: VEIN IS 2 - 5 FT. THICK. BLUE-BLACK QUARTZ BIOTITE HORNFELS, BLACK QUARTZITE AND A MEDIUM-GRAINED, ALTERED INTRUSIVE ROCK, EITHER DIABASE OR DIORITE, TWO ORE SHOOTS 100 FEET APART.
Comment (Location): NW 1/4 15 , NE 1/4 16 UTM ACC.
Comment (Commodity): POCKETS OF HIGH GRADE ORE
Comment (Production): TOTAL RECORDED PRODUCTION IS ABOUT $18,500. WORKED INTERMITTENTLY BETWEEN 1923 AND 1935; DURING WINTER OF 1937 TWO MEN RECOVERED $76.00 WORTH OF GOLD IN 3 DAYS FROM A SOIL MANTLE SOUTH OF THE SHAFT; MILLING OF 24 TONS OF DUMP MATERIAL IN 1949 YIELDED 18 OZ. OF GOLD, OR AN AVERAGE OF $26.25 PER TON. ONLY ASSESSMENT WORK DONE SINCE 1949.
Comment (Deposit): VEIN, ORE SHOOTS
Comment (Workings): SEVERAL OPEN CUTS AND A 200-FT. INCLINED SHAFT WITH SEVERAL LEVELS AND STOPES.
Comment (Deposit): TWO UNPATENTED CLAIMS, THE ARGO AND THE PIONEER. ACCORDING TO THE OWNER HIGH-GRADE ORE OCCURS IN SMALL SHOOTS AND POCKETS IN WHICH SPECIMEN GOLD IS ASSOCIATED WITH QUARTZ AND PYRITE.
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. 75 - 76 , 235 .
Reference (Deposit): CLARK, W. B., 1970 , GOLD DISTRICTS OF CALIF.: CDM BULL. 193 , P. 85 .
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.
