The Big 4 Iron is a iron mine located in Inyo county, California at an elevation of 6,680 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: 6,680 Feet (2,036 Meters)
Commodity: Iron
Lat, Long: 36.05333, -117.45556
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.
Big 4 Iron MRDS details
Site Name
Primary: Big 4 Iron
Commodity
Primary: Iron
Secondary: Copper
Secondary: Gold
Secondary: Silver
Tertiary: Silica
Tertiary: Sulfur
Location
State: California
County: Inyo
District: Argus
Land Status
Land ownership: Military Reservation
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
Type: Surface/Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: TABULAR, PINCH AND SWELL
Structure
Not available
Alterations
Not available
Rocks
Name: Hornblendite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Hornblendite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Limonite
Ore: Pyrite
Gangue: Quartz
Comments
Comment (Deposit): SHAFT, DRIFTS, AND PROSPECT PITS DRIVEN TO EXPLORE LIMIT OF A QUARTZ-BEARING MINERALIZED SHEAR ZONE RANGING FROM 1" TO 2 1/2 FEET WIDE. THESE SMALL WORKINGS CLEARLY EXPOSED THE ZONE FROM HANGING WALL TO FOOTWALL ; INFO.SRC : 3 FIELD OBSERV
Comment (Workings): 1 VERTICAL SHAFT-41' DEEP, AVERAGING 12.5' LONG BY 9.5' WIDE 2 1 DRIFT 6' WIDE BY 6' HIGH BY 10' DEEP 3 1 DRIFT 4 1/2' WIDE BY 5.8' HIGH BY 14' DEEP 4 THREE PROSPECT PITS-FILLED IN WITH SLOPE WASH-ONE PIT IN SEPARATE VEIN STRUCTURE-LIMITS UNKNOWN
Comment (Geology): GRANODIORITE HAS ABUNDANT LARGE PINK POTASSIUM FELOSPAR PHENOCRYSTS
Comment (Commodity): PRESENCE OF PRECIOUS METALS SPECULATIVE UNTIL ASSAY RESULTS PRODUCED
References
Reference (Deposit): W.F. DURBIN, C. NEAL, C. RODGERS, MAPPING & SAMPLING 4-20-83
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.
