Geronimo Group

The Geronimo Group is a manganese mine located in Pinal county, Arizona at an elevation of 2,549 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: Geronimo Group

State:  Arizona

County:  Pinal

Elevation: 2,549 Feet (777 Meters)

Commodity: Manganese

Lat, Long: 33.07833, -110.86028

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 Geronimo Group

Geronimo Group MRDS details

Site Name

Primary: Geronimo Group


Commodity

Primary: Manganese
Tertiary: Barium-Barite


Location

State: Arizona
County: Pinal
District: Steamboat Mountain District


Land Status

Land ownership: State
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

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
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: Mexican Highland


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Sandstone
Role: Host
Age Type: Host Rock Unit
Age Young: Miocene

Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Miocene


Analytical Data

Analytical Data: 1942 ASSAY WAS 30.2 PERCENT MANGANESE


Materials

Ore: Pyrolusite
Ore: Psilomelane
Gangue: Quartz
Gangue: Barite
Gangue: Calcite


Comments

Comment (Location): SW FLANK OF DRIPPING SPRINGS MOUNTAINS. ; INFO FROM LAND.ST :(1979)

Comment (Development): SEVEN UNPATENTED CLAIMS; FLORENCE NEATHERLIN, OWNER 1941

Comment (Deposit): LENSES UP TO A FEW TENS OF FEET, WIDTHS UP TO 4 FEET. FOUR PARALLEL ZONES 50 TO 200 FEED APART.

Comment (Workings): SCATTERED DISCOVERY PITS AND OPEN CUTS.


References

Reference (Deposit): USBM I-C. 7990, 1961, P. 152.

Reference (Deposit): USBM FILE DATA


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.