The Francis is a copper mine located in San Bernardino county, California at an elevation of 4,678 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: 4,678 Feet (1,426 Meters)
Commodity: Copper
Lat, Long: 35.05056, -115.49222
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.
Francis MRDS details
Site Name
Primary: Francis
Commodity
Primary: Copper
Secondary: Lead
Secondary: Zinc
Secondary: Silver
Location
State: California
County: San Bernardino
District: Kelso
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Year: 1918
Material type: ORE
Description: Ap_Grade: ^1.7 - 2 % Cu, 7.8 Oz - 10.6 Oz Ag
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Galena
Ore: Sphalerite
Ore: Scheelite
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Location): UTM EST. ; INFO FROM LAND.ST :UNDETERMINED
Comment (Production): ORE CONTAINS 1 - 2 % PB, 3 - 10 % ZN.
Comment (Deposit): VEIN IN QUARTZ PORPHYRY INTRUSIVE
Comment (Workings): TWO SHAFTS TO DEPTHS OF 70 AND 140 FT. WITH CONNECTING DRIFT ON 70 FT. LEVEL 160 FT. IN LENGTH, OTHER DRIFTS ON 140 FT. LEVEL TOTALING 600 FT.
References
Reference (Deposit): GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 3 & 4 ; DIV. OF MINES, P. 631
Reference (Deposit): TUCKER, W. B., AND SAMPSON, R. J., 1943 , MINERAL RESOURCES, SAN BERNARDINO COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 39 , NO. 4 ; DIV. OF MINES, P. 434
Reference (Deposit): NW QUARTER ON MID HILLS QUAD;CJMG V 49 NO 1 PL 1
Reference (Production): TUCKER, W. B., 1943 , P. 434
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.
