The Murphy Mine is a chromium mine located in El Dorado 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.
Murphy Mine MRDS details
Site Name
Primary: Murphy Mine
Commodity
Primary: Chromium
Location
State: California
County: El Dorado
District: Latrobe 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: Egloff, W. C.
Owner Name: E. Hadsel, J. Grant
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
Form: IRREGULAR
Structure
Type: L
Description: Strongly Developed Joint Planes Strike N20-40e And Dip Steeply To Se.
Alterations
Alteration Type: L
Alteration Text: Serpentinization
Rocks
Name: Dunite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Jurassic
Analytical Data
Analytical Data: AVG. ORE 15-20% CR2O3, CR: FE RATIO 2.7. CONCETRATES 48% CR2O3
Materials
Ore: Chromite
Comments
Comment (Reserve-Resource): TWO POTENTIAL ORE LOCATIONS: AT GREATER DEPTH ALONG TREND OF N20E FROM MAIN WORKINGS; AREA WEST OF MAIN ORE TREND WHERE EXPOSURES TREND NEARLY PERPENDICULAR TO TREND OF MAIN ORE ZONE.
Comment (Workings): WORKINGS CONSISTED OF 2 OPEN PITS
Comment (Geology): MINE LIES IN NARROW, NW TRENDING ULTRA MAFIC BODY.
References
Reference (Deposit): STINSON, M.C., 1976, MINERAL PROPERTY REPORT, CDMG UNPUBLISHED REPORT.
Reference (Deposit): CDMG BULL 134, P. 123-124.
Reference (Production): STINSON, 1976, CDMG UNPUBLISHED REPORT.
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.
