The Big Twenty is a gold mine located in Mineral county, Nevada at an elevation of 6,401 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: 6,401 Feet (1,951 Meters)
Commodity: Gold
Lat, Long: 38.97222, -118.92528
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 Twenty MRDS details
Site Name
Primary: Big Twenty
Commodity
Primary: Gold
Location
State: Nevada
County: Mineral
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Sericitized Granodiorite
Rocks
Not available
Analytical Data
Not available
Materials
Gangue: Sulfur
Comments
Comment (Production): A SMALL AMOUNT OF LOW-GRADE AU ORE WAS PRODUCED.
Comment (Deposit): CONTINUATION OF MOUNTAIN VIEW VEIN
Comment (Workings): 3 SUBPARRALLEL VEINS, DEVELOPED BY SEVERAL INCLINED SHAFTS ON THE VEIN AND BY A LONG CROSSCUT TUNNEL.
Comment (Geology): GEOL.DESC: VEIN FILLING IS QTZ AND IRON OXIDE
Comment (Location): EAST OF SUMMIT
References
Reference (Deposit): HILL, J. M., 1915 , SOME MINING DISTRICTS IN NE CALIF. AND NW. NEV., USGS BULL 594
Reference (Deposit): ROSS, D. C., 1961 , GEOLOGY AND MINERAL DEPOSITS OF MINERAL CO., NEV., NEV. BUREAU OF MINES, BULL 58
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
