Loma De Manganese Mine

The Loma De Manganese Mine is a copper, manganese, and silver mine located in Santa Cruz county, Arizona at an elevation of 4,400 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: Loma De Manganese Mine

State:  Arizona

County:  Santa Cruz

Elevation: 4,400 Feet (1,341 Meters)

Commodity: Copper, Manganese, Silver

Lat, Long: 31.44944, -111.26889

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 Loma De Manganese Mine

Loma De Manganese Mine MRDS details

Site Name

Primary: Loma De Manganese Mine


Commodity

Primary: Copper
Primary: Manganese
Primary: Silver


Location

State: Arizona
County: Santa Cruz
District: Oro Blanco District


Land Status

Land ownership: National Forest
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

Owner Name: Edward A. Sheeney

Owner Name: Frank Otero And E. M. Hunter


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1953
Discovery Method: 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: IRREGULAR/LENS


Structure

Not available


Alterations

Alteration Type: L
Alteration Text: Py-Gossan


Rocks

Name: Rhyolite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic


Analytical Data

Not available


Materials

Ore: Pyrolusite
Ore: Psilomelane


Comments

Comment (Production): PRIOR TO 1953, SHIPMENTS OF HIGH GRADE COPPER - SILVER ORE HAD BEEN MADE FROM ADJACENT CLAIMS.

Comment (Deposit): DEPOSIT AT CONTACT OF COBRE RIDGE TUFF AND QUARTZ MONZONITE DIKE. ORE IN LENSES IN FISSURE ZONE, LITED IN STRIKE LENGTH TO 100 FT. HIGH GRADE LIMITED IN STRIKE LENGTH TO 50 FEET.

Comment (Workings): 1 SHAFT WITH 1 DRIFT AND IRREGULAR STOPES FROM DRIFT; ONE OPENCUT.

Comment (Location): MINE LOCATION GIVEN IN TEXT REFERENCE APPARENTLY IN ERROR BY ONE RANGE; ACCESS DIRECTIONS GIVEN INDICATE ABOVE LOCATION. INFO FROM LAND.ST :(1964)


References

Reference (Deposit): YEEND, WARREN, 1973.

Reference (Deposit): ABM BULL 191, P. 64.

Reference (Deposit): 1957 RECON USBM IC 799

Reference (Other Database): CIMRI

Reference (Production): USBM IC 7990

Reference (Deposit): FARNHAM, STEWART, AND DELONG, 1961, MANGANESE DEPOSITS OF ARIZONA: USBM IC 7990.


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