The Black Bart Group is a mine located in Stanislaus county, California at an elevation of 1,801 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: 1,801 Feet (549 Meters)
Commodity:
Lat, Long: 37.4144, -121.43890
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.
Black Bart Group MRDS details
Site Name
Primary: Black Bart Group
Secondary: Black Bart Mine
Commodity
Tertiary: Chromium
Tertiary: Iron
Location
State: California
County: Stanislaus
District: Del Puerto Area
Land Status
Land ownership: Private
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
Type: Minerals Only
Type: Fee Ownership
Type: Patented
Workings
Not available
Ownership
Owner Name: Alphonso Estate - Mineral Rights Only
Percent: 100.0
Home Office: California
Info Year: 1976
Owner Name: Gary Barber-Surface Rights Only
Percent: 100.0
Home Office: California
Info Year: 1976
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Mining Method: Unknown
Year First Production: 1917
Discovery Year: 1917
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Unknown: Antigorite
Unknown: Chromite
Unknown: Olivine
Unknown: Serpentine
Comments
Comment (Deposit): GRAB SAMPLE ORE RAN 33.8 PERCENT CR2O3. PURE CRMT 41.25 PERCENT CR2O3 CR TO FG RATIO 2.20 RESERVE ESTIMATE BY HAWKES ET AL USGS BULL.936-D,CHROMITE AN SILVER RESOURCES OF THE DEL PUERTO AREA 1942 THE AVERAGE MINEABLE GRADE OF CHROMITE IS 33.8 PERCENT AND IR 15 PERCENT. INADEQUATE RESOURCES FOR COST ANALYSIS. ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-DISSEMIN E=S102 03.34,CR2O3 38.67,FEO 11.64,TOTAL FE 14.47,AL203 19.9 4.09,CR/FE 2.33.
References
Reference (Deposit): HAWKES ET AL.USGS BULL 936-D,1942P.93-94, 98-101
Reference (Deposit): CDMG BULL 134,PT2,CHAP 2,1953 STANISLAUS COUNTY P.75
Reference (Deposit): CJMG VOL 43,NO 2,MINES AND MINERAL RESOURCES STANISLAUS CO.P
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.
