The Double-A Prospect is a manganese mine located in Trinity county, California.
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
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.
Double-A Prospect MRDS details
Site Name
Primary: Double-A Prospect
Commodity
Primary: Manganese
Location
State: California
County: Trinity
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: AVERAGE GRADE 35 PERCENT MANGANESE
Materials
Ore: Hausmannite
Ore: Bementite
Ore: Rhodochrosite
Comments
Comment (Location): LOCATED IN CENTER SECTION 16
Comment (Geology): GEOL.DESC: MANGANESE ORE OCCURS IN THIN-BEDDED SHALY RED CHERT, STRIKING N. TO N. 30 W. AND DIPPING 35 TO 55 E. ORE BEDS ARE FAULTED AND FOLDED, SO RELATIONS AND CONTINUITY ARE OBSCURE. MAXIMUM THICKNESS IS 2 FT. ORE IS A BANDED MIXTURE OF COARSE-GRAINED RHODOCHROSITE, HAUSMANNITE, MANGANIFEROUS CHERT AND BEMENTITE.
References
Reference (Deposit): D.O.M. BULL. 152 1950 PP. 314 - 315
Reference (Deposit): D.O.M. BULL. 125 1943 P. 198
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.
