The Black Rock Group is a manganese mine located in Graham county, Arizona at an elevation of 4,301 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: 4,301 Feet (1,311 Meters)
Commodity: Manganese
Lat, Long: 32.43611, -109.63333
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.
Black Rock Group MRDS details
Site Name
Primary: Black Rock Group
Secondary: Vickers
Commodity
Primary: Manganese
Location
State: Arizona
County: Graham
District: Fisher Hills District
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
Type: Surface/Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Form: LENTICULAR STRINGERS
Structure
Not available
Alterations
Not available
Rocks
Name: Granite
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Analytical Data: SAMPLE: 15.4 % MN
Materials
Ore: Pyrolusite
Ore: Psilomelane
Gangue: Calcite
Comments
Comment (Production): SMALL AMOUNT OF SORTED ORE SHIPPED DURING WWI.
Comment (Development): TWO UNPATENTED CLAIMS, LOCATED FIRST IN WWI, RELOCATED IN 1938 BY E.F. VICKERS. RELOCATED IN 1952 BY E. SANCHEZ AND ASSOCIATES AND RENAMED BLACK ROCK GROUP
Comment (Workings): SHALLOW PIT AND 3 SHAFTS.
Comment (Deposit): TEXT SAYS THAT BLACK ROCK GROUP IS LOCATED IN SECTION 30 BUT DESCRIPTION LOCATES IT IN SECTION 31 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): FARNHAM, L. L., STEWART, L. A., AND DELONG, C. W., 1961, U.S. BUREAU OF MINES INFORMATION CIRCULAR 7990, P. 93-94.
Reference (Deposit): U.S. BUREAU OF MINES, MILS, U.S. BUREAU OF MINES COMPUTER BANK, 1978A.
Arizona Gold
"Where to Find Gold in Arizona" 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 Arizona. Read more: Where to Find Gold in Arizona.
