The Dobbins Claims is a manganese mine located in La Paz county, Arizona at an elevation of 1,348 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: 1,348 Feet (411 Meters)
Commodity: Manganese
Lat, Long: 33.94528, -113.92306
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.
Dobbins Claims MRDS details
Site Name
Primary: Dobbins Claims
Secondary: Jolly Roger
Commodity
Primary: Manganese
Location
State: Arizona
County: La Paz
District: Bouse District
Land Status
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.
Holdings
Not available
Workings
Type: Surface
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: The Manganese Oxides Occur As The Cementing Material Of Breccia And Which Replace In Part The Andesite Fragments. Psilomelane Is More Abundant At The Surface, But At Depths Of A Few Feet Pyrolusite Predominates
Rocks
Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Psilomelane
Ore: Pyrolusite
Comments
Comment (Production): ABOUT 30 TONS OF ORE WAS STACKED ON THE DUMP IN 1918, AND 100 TONS OF ORE PRODUCTION BY 1941
Comment (Workings): A HOLE 10 FT DEEP WAS DUG AT POINT WHERE MANGANESE FLOAT WAS ABUNDANT.
Comment (Geology): VEINS IN MIOCENE VOLCANICS
References
Reference (Deposit): BUTLER, G.M.; 1930; MANGANESE ORE DEPOSITS IN ARIZONA; A.B.M. BULLETIN 127, P. 101
Reference (Deposit): JONES, E.L. JR.; RANSOME, F.L.; 1920; DEPOSITS OF MANGANES ORE IN ARIZONA; U.S.G.S. BULLETIN 710, P. 182
Reference (Production): A.B.M. BULLETIN 127, P. 101, U.S.G.S. BULLETIN 710, P. 182
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.
