The Zerfing Ranch Deposit is a chromium mine located in San Luis Obispo county, California at an elevation of 449 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: 449 Feet (137 Meters)
Commodity: Chromium
Lat, Long: 35.48306, -120.84056
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.
Zerfing Ranch Deposit MRDS details
Site Name
Primary: Zerfing Ranch Deposit
Secondary: Old Creek Deposit
Commodity
Primary: Chromium
Location
State: California
County: San Luis Obispo
District: Northern San Luis Obispo 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
Not available
Workings
Not available
Ownership
Owner Name: Zerfing, A. L.
Production
Year: 1918
Material type: ORE
Description: Ap_Grade: ^Avg. 46% Cr2o3
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: Pacific Border Province
Physiographic Section: California Coast Ranges
Physiographic Detail: Santa Lucia Range
Mineral Deposit Model
Not available
Orebody
Form: OTHER
Structure
Not available
Alterations
Not available
Rocks
Name: Serpentinite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic
Analytical Data
Analytical Data: 8% SIO2
Analytical Data: AVG. 46% CR2O3
Materials
Ore: Chromite
Comments
Comment (Deposit): DEPOSIT CONSISTED OF A STREAK 8 IN. TO 2 FT. WIDE AND 60 FT LONG.
Comment (Workings): WORKINGS CONSISTED OF A CAVED STOPE AND DRIFT (1941).
References
Reference (Production): CDMG BULL 134, PT. 2, CHAPT. 2, P. 58
Reference (Deposit): WALKER, G.W. AND GRIGGS, A.B., 1953, CDMG BULL 134, PART 2, CHAPT. 2, P. 58, 85
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.
