The B and M 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.
B and M MRDS details
Site Name
Primary: B and M
Secondary: Fournier
Commodity
Primary: Gold
Secondary: Silver
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
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
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: ONLY 3 % SULFIDE ORE
Materials
Ore: Silver
Ore: Gold
Gangue: Quartz
Comments
Comment (Production): LAST KNOWN PERIOD OF ACTIVITY WAS 1934-39 WHEN 55 TONS OF ORE WERE SHIPPED WHICH YIELDED $5000 IN GOLD AND SILVER. MAY BE SAME PROPERTY FROM WHICH 8.5 TONS OF POCKET ORE YIELDED $7523.04 BT. 1911 AND 1914. ORE CARRIED ONLY 3 PERCENT SULFIDES; AVERAGE MILLING RAN $25 TO $30 PER TON WITH HIGH-GRADE RUNNING AS HIGH AS $643.00 PER TON.
Comment (Deposit): VEINS, POCKETS
Comment (Location): NEAR BUCKEYE CREEK UTM EST.
Comment (Deposit): SHAFT IS NOW LARGELY FILLED WITH DEBRIS.
Comment (Workings): SHAFT IS NOW LARGELY FILLED W DEBRIS. VERTICAL SHAFT 65 - 110 FT. DEEP WITH 50 FT. DRIFT W. SHAFT WAS ORIG. WITH 185 FT. OF DRIFTS.
Comment (Geology): GEOL.DESC: EAST VEIN AT SURFACE APPARENT DIP 70 DEGREES, TWO PARALLEL VEINS IN BIOTITE HORNBLENDE QUARTZ DIORITE WALL ROCKS.
References
Reference (Deposit): CASTELLO, W. O., 1921 , MARIPOSA COUNTY: 17TH REPORT STATE (CALIF.) MINERALOGIST ( FOR 1920 ), P. 115 - 6 .
Reference (Production): BOWEN AND GRAY, 1957
Reference (Deposit): LAIZURE, C. MCK., 1935 , CURRENT MINING ACTIVITIES IN THE SAN FRANCISCO DISTRICT WITH SPEC. REF. TO GOLD: CALIF. JOUR. MINES & GEOL., VOL. 31 , NO. 1 , P. 28 - 29 .
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. 236 .
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.
