No. 4 Claim

The No. 4 Claim is a manganese mine located in Cochise county, Arizona at an elevation of 5,801 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

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.

Site Name

Primary: No. 4 Claim

Commodity

Primary: Manganese
Secondary: Copper
Tertiary: Silver

Location

State: Arizona
County: Cochise
District: Warren District

Land Status

Land ownership: Private
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: Unknown

Ownership

Owner Name: Phelps Dodge Corp.

Owner Name: Phelps Dodge Corp

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1918
Year Last Production: 1921
Discovery Method: Ore-Mineral In Place
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

Form: IRREGULAR

Structure

Type: R
Description: Pre-Mineralization Faulting And Tilting Common

Type: L
Description: Main Fault Directions, N10w To N40e, S30w To N50w, Pre-Mineralization

Alterations

Alteration Type: L
Alteration Text: Gossan With Mn And Fe Oxides Induced By Hydrothermal Metamorphism

Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age in Years: 170.500000+-7.500000
Age Young: Jurassic

Analytical Data

Not available

Materials

Ore: Chalcocite
Ore: Chalcopyrite
Ore: Bornite
Ore: Psilomelane
Gangue: Calcite
Gangue: Pyrite

Comments

Comment (Production): PRODUCTION UNDER PHELPS DODGE CORP

Comment (Development): NO. 4 CLAIM IS ON THE SW SLOPE OF ESCABROSA RIDGE, THE DEPOSIT RUNS NORTHWARD INTO THE SUMMIT CLAIM OF THE CALUMET AND ARIZONA MINING CO.

Comment (Deposit): HARD MANGANESE OXIDE IN IRREGULAR PODS AND PIPES ALONG A FRACTURE AND BRECCIA ZONE IN LIMESTONE

Comment (Workings): OPEN CUT FOLLOWS THE ZONE NORTHWARD 125 FT, IS 10-20 FT WIDE AND REACHES A DEPTH OF ABOUT 45 FT AT THE FACE. NEAR THE FACE, AN UNDERHAND STOPE EXTENDED NORTHWARD ALONG THE ZONE AN EXTRA 50 TO 60 FT. THE STOPE REACHED A MAX DEPTH OF 20 FT OR MORE BELOW THE OPEN CUT FLOOR

Comment (Geology): IRREGULAR PRONGS OF ORE EXTEND INTO THE LIMESTONE ON EACH SIDE OF THE ORE ZONE. SOME FOLLOW BEDDING PLANES, AND OTHERS CUT ACROSS THE BEDS

References

Reference (Deposit): FARNHAM, 1961, USBM IC 7990, P. 11

Reference (Production): KEITH, 1973, ARIZ. BUR. OF MINES BULL. 187.

Reference (Deposit): KEITH, S.B., 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P. 89.

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.