Dobbins Claims

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

Name: Dobbins Claims  

State:  Arizona

County:  La Paz

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.


Satelite image of the Dobbins Claims

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

"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.