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  3. Mineral Resource Data System (MRDS)

Montana Mine

Producer in Pima county in Arizona, United States with commodities Copper, Silver, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Production statistics
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10109611
MRDS ID M050393
Record type Site
Current site name Montana Mine
Alternate or previous names Black Diamond

Geographic coordinates

Geographic coordinates: -110.65512, 31.91651 (WGS84)
Elevation 1207
Relative position 7 MILES SW OF PANTANO

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Fagan(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rillito(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 017S 017E 31 Arizona

Comments on the location information

  • NW 1/4 SECTION 31 .

Commodities

Commodity Importance
Copper Primary
Silver Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Analytical data

Result ORE AVERAGED 9 % CU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -110.65512, 31.91651
ListMap

Economic information

Ore body information

  • General form TABULAR
    Dip 50 W
    Width 6.1M

Controls for ore emplacement

  • Mineralized Fault Zone

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Empire District

Production statistics

  • Year 1894
    Material ORE CU
    Accuracy Estimate
    Description Ap_Grade: ^9 % Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 9wt-pct

Workings at the site

  • Type of workings Underground
    Length 27.43M

Comments on the workings information

  • 30 DEGREE INCLINE TUNNEL.

Reference information

Bibliographic references

  • Deposit

    KEITH, S. B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189 , P. 119 .

  • Deposit

    SCHRADER, F. C., 1915 , MINERAL DEPOSITS OF THE SANTA RITA AND PATAGONIA MOUNTAINS, ARIZONA: USGS BULLETIN 582 , P. 51 - 2 .

  • Deposit

    GILLINGHAM, T. E., JR., 1936 , THE GEOLOGY OF THE CALIFORNIA MINE AREA, PIMA CO., ARIZONA: UNIV. OF ARIZONA MASTERS THESIS.

  • Production

    GILLINGHAM, 1936 ; USGS BULLETIN 582 ; ABM BULLETIN 189 .

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.