Big 4 Iron

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

Name: Big 4 Iron  

State:  California

County:  Inyo

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.


Satelite image of the Big 4 Iron

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

"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.