The Black Rock Mine is a manganese mine located in Lander county, Nevada at an elevation of 6,631 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.
Elevation: 6,631 Feet (2,021 Meters)
Lat, Long: 40.59861, -117.22750
Map: View on Google Maps
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.
Black Rock Mine MRDS details
Primary: Black Rock Mine
District: Battle Mountain District
Land ownership: BLM Administrative Area
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.
Owner Name: Potter, E. B.
Years: 1950 - 1953
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1942
Discovery Year: 1940
Discovery Method: Ore-Mineral In Place
Years of Production:
Deposit Size: S
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin
Physiographic Detail: Basin And Mountains
Mineral Deposit Model
Model Name: Volcanogenic Mn
Form: BLANKET, LENTICULAR ORE BODIES
Description: Ne-Trending Faults, N-Trending Major Folds
Age Type: Host Rock Unit
Age Young: Late Permian
Analytical Data: COPPEROXIDE 0.50 IN ONE ANALYSIS. 1950-1953, ORE AVEARAGED 20-30% MN, 49.8-55.4% S.OZ
Analytical Data: 1942-1944: HEADS AVERAGED 21% MN, 55% S. OZ, IRON CONTENT WAS 1.8-3.8%
Comment (Development): DISCOVERED IN 1940 AND LEASED SOON THEREAFTER TO WESTERN ALLOYS CO. OF S.L.C. IN DEC., 1940, A 60 TPD MILL WAS BUILT 3 MILES NORTH. IT WAS WORKED INTERMITTENTLY UNTIL 1944, AND WAS LEASED TO E.B. POTTER FROM 1950 TO 1953 WITH SOME PRODUCTION
Comment (Deposit): REPLACEMENT OF SEDIMENTARY BEDS
Comment (Geology): ORE BODIES ARE IN A CHERT INTERBEDDED WITH SHALE AND QUARTZITE. BRAUNITE FORMED BY LOW-GRADE METAMORPHISM OF A MN-SEDIMENTARY DEPOSIT. SUBSEQUENT WEATHERING OF THE BRAUNITE FORMED SECONDARY MINERALS PSILOMELANE, PYROLUSITE AND WAD. MN-RICH CHERT LAYERS ARE LENTICULAR, FROM (1INCH TO 6 INCHES THICK. MN OXIDESRE PLACE THE CHERT)
Comment (Location): W.SIDE OF BATTLE MOUNTAIN RANGE
Comment (Production): FROM 1942 TO 1947, 11,150 SHORT TONS ORE WERE PRODUCED, CONTAINING 13.5% TO 39.9% NATURAL MN; FROM 1950 TO 1953, 10,126 TONS ORE WERE PRODUCED, WITH A-GROSS VALUE OF $170,420.61
Comment (Deposit): BLACK ROCK MINE WAS DISCOVERED BY H. KATTENHORN AND P.L. REASONER IN 1940 AND WAS SOON LEASED TO WESTERN ALLOYS CO OF S.L.C. IN DEC., 1940, A 60 TON PER DAY MILL WAS BUILT AT MOUTH OF TRENTON CANYON 3 MILES NORTH. IT OPERATED INTERMITTENTLY UNTIL 1944. THE PROPERTY PRODUCED ORE FROM 1950 TO 1953 UNDER LEASE TO E.B. POTTER ; INFO.SRC : 1 PUB LIT
Reference (Deposit): ROBERTS, R.J. AND ARNOLD, D.C., 1965, ORE DEPOSITS OF THE ANTLER PEAK QUADRANGLE HUMBOLDT AND LANDER COUNTIES, NEVADA: U.S.G.S. PROF. PAPER 459-B
Reference (Production): ROBERTS. R.J. AND ARNOLD, D.C., 1965.
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 at Gold Districts of Nevada.