Last Chance Mine

The Last Chance Mine is a manganese mine located in Gila county, Arizona at an elevation of 4,678 feet.

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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: Last Chance Mine

State: Arizona

County: Gila

Elevation: 4,678 Feet (1,426 Meters)

Primary Mineral: Manganese

Lat, Long: 33.46389, -110.77778

Satelite image of the Last Chance Mine

Last Chance Mine MRDS details

Site Name

Primary: Last Chance Mine
Secondary: Lillian

Commodity

Primary: Manganese
Tertiary: Silver

Location

State: Arizona
County: Gila
District: Globe Hills District

Land Status

Land ownership: National Forest
Administrative Organization: Tonto National Forest

Holdings

Workings

Type: Surface/Underground

Ownership

Owner Name: Henderson, Charles C.
Years: 1954 - 1961

Production

Year: 1955
Material type: MN
Description: Ap_Grade: ^30.4 % Mn

Deposit

Record Type: Site
Operation Category: Producer
Deposit Type: Vein
Operation Type: Unknown
Year Last Production: 1955
Discovery Year: 1875
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

Orebody

Form: IRREGULAR PODS

Structure

Alterations

Rocks

Name: Diabase
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Materials

Ore: Pyrolusite

Ore: Psilomelane

Comments

Comment Type: Workings	Comment: A FEW SMALL STOPES EXTENDED SHORT DISTANCES ABOVE THE BACK OF THE ADIT. ADDITIONAL WORK CONSISTED OF A FEW SHALLOW CUTS ALONG THE SURFACE SOUTHWEST OF THE PORTAL OF THE ADIT.
Comment Type: Location	Comment: TONTO NATIONAL FOREST
Comment Type: Development	Comment: CLAIMS HELD BY CHARLES CAMPBELL (1942)

References

Reference Category: Deposit	Reference: FARNHAM, L.L., STEWART, L.A., AND DELONG, C.W., 1961, MANGANESE DEPOSITS OF EASTERN ARIZONA: USBM INFORMATION CIRCULAR 7990
Reference Category: Production	Reference: USBM INFORMATION CIRCULAR 7990 , P. 68