The Jobe Ranch Mine is a manganese mine located in San Luis Obispo county, California at an elevation of 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: 801 Feet (244 Meters)
Commodity: Manganese
Lat, Long: 35.26639, -120.75528
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.
Jobe Ranch Mine MRDS details
Site Name
Primary: Jobe Ranch Mine
Commodity
Primary: Manganese
Location
State: California
County: San Luis Obispo
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M
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
Name: Chert
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: AVERAGE GRADE 45 PERCENT MANGANESE
Materials
Ore: Hausmannite
Comments
Comment (Geology): ORE HOSTED IN FRANCISCAN COMPLEX--L. TO L. ; GEOL.DESC: ORE OCCURS BETWEEN MASSIVE JASPER AND CONTORTED THIN-BEDDED GREEN AND WHITE CHERT OF THE FRANCISCAN GROUP. IT IS UNCERTAIN WHETHER THE JASPER IS STRATIGRAPHICALLY ABOVE OR BELOW THE ORE HORIZON DUE TO THE DIP DIRECTION. ORE IS IN LENTICULAR MASSES 1 TO 4 FT. THICK, CONSISTING MAINLY OF HAUSMANNITE AND MANGANIFEROUS CHERT IN THE W. ADIT. ORE BECOMES MORE SILICEOUS TOWARD WALLS GRADING INTO MANGANIFEROUS CHERT TO THIN-BEDDED CHERT. ORE IS VEINED BY QUARTZ AND CLEAR RESINOUS NEOTOCITE.
Comment (Location): LOCATED IN SE 1/4 SE 1/4 SECTION 35 ; INFO FROM LAND.ST :UNDETERMINED
References
Reference (Deposit): CALIF DOM BULL 152,P 233;
Reference (Deposit): D.O.M. BULL 125 1943 PP. 65 , 169
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.
