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  3. Mineral Resource Data System (MRDS)

Last Chance Mine

Past Producer in Pima county in Arizona, United States with commodity Tungsten
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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. Production statistics
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10039476
MRDS ID M050138
Record type Site
Current site name Last Chance Mine

Geographic coordinates

Geographic coordinates: -111.67653, 31.91595 (WGS84)
Elevation 1006
Relative position ABOUT 1/2 MILE SOUTH OF SAN JUAN SPRING; ABOUT 1/4 MILE EAST OF FOOTHILL TRIAL RD

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Juan Spring(quadrangle 1:24,000 scale)

Sells(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Simon Wash(hydrologic unit)

Rio Sonoyta(hydrologic accounting unit)

Sonora(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

BIA(Federal land areas administered by BIA)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 17S 07E 30 Arizona

Comments on the location information

  • UNSURVEYED; LOCATION PROJECTED BY U.S.B.M ON SKETCH MAP

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) Jurassic volcanic rocks
ListMap

Economic information

Ore body information

  • Strike EAST-WEST
    Dip VERTICAL TO EAST

Controls for ore emplacement

  • Fracture Zone

Comments on the geologic information

  • GEOL.DESC: ORE IN METAMORPHOSED BAND THAT APPEARS ORIGINALLY TO HAVE BEEN LIMESTONE INTERBEDDED WITH SANDSTONE LAYERS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1954
Discoverer Earl Hicklin, Jr

Production statistics

  • Year 1957
    Period 1954-1957
    Material ORE W
    Accuracy Estimate
    Description Cp_Grade: ^0.5% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Wo3 Ore Tungsten Tungsten 1wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 4.57M

Comments on the workings information

  • ONE SHAFT; BULLDOZER CUTS AND SHALLOW PITS

Reference information

Bibliographic references

  • Deposit

    DALE, STEWART, AND MCKINNEY, 1960, TUNGSTEN DEPOSITS OF COCHISE, PIMA, AND SANTA CRUZ COUNTIES,: U.S.B.M. R.I. 5650

  • Deposit

    1957 RECON USBM RI 5650

  • Deposit

    DALE, STEWART, AND MCKINNEY, 1960, TUNGSTEN DEPOSITS OF COCHISE, PIMA AND SANTA CRUZ COUNTIES: U.S. BUREAU OF MINES, R.I. 5650

  • Production

    DALE ETAL 1960 USBM RI 5650

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1972 Johnson, Maureen G. 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.