Border Mine Group

Past Producer in Pima county in Arizona, United States with commodities Gold, Silver, Tungsten, Copper, Lead
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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10039609
MRDS ID M050487
Record type Site
Current site name Border Mine Group
Alternate or previous names Tunquepata Or Tunquita
Related records 10234627

Geographic coordinates

Geographic coordinates: -111.42041, 31.44791 (WGS84)
Elevation 1204
Relative position AT MEXICO-USA BORDER, 9 MILES WSW OF ORO BLANCO.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cumero Mountain(quadrangle 1:24,000 scale)

Atascosa Mountains(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rio De La Concepcion(hydrologic unit)

Rio De La Concepcion(hydrologic accounting unit)

Sonora(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 023S 009E 09,04 SE4 (04) OF NE4 (09) Arizona

Commodities

Commodity Importance
Gold Primary
Silver Primary
Tungsten Critical Secondary
Copper Secondary
Lead Tertiary

Alteration

  • (Local) Pyrite-Chalcopyrite Gossan, And Silica

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -111.42041, 31.44791

Economic information

Controls for ore emplacement

  • Contact Of Intrusion And Andesite

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1933
Year of last production 1942

Mining district

District name Cerro De Fresnal District

Land status

Ownership category National Forest
Area name Coronado National Forest

Ownership information

  • Type Operator
    Owner Fischer Watt Mining Co.
    Home office Kingman, Az.
    First year 1986

Production statistics

  • Year 1941
    Period 1930 - 1941
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^0.9 Oz Au/Ton, Some Pb And Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 25g/mt

Comments on the production information

  • INTERMITTENT PRODUCTION

Workings at the site

  • Type of workings Unknown
    Overall depth 30.48M

Comments on the workings information

  • SHAFT, TRENCH, OPEN CUT

Comments on development

  • 1984-86: FISCHER WATT DID GEOLOGIC EVALUATION AND GEOCHEMICAL SAMPLING AT THIS SITE.

Reference information

Bibliographic references

  • Deposit

    KEITH, S. B., 1974, INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN, 189, P. 104.

  • Deposit

    YEEND, WARREN, 1972, FIELD EXAMINATION.

  • Deposit

    NIEMUTH, N.J., 1987, ARIZONA MINERAL DEVELOPMENT 1984-1986: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES DIRECTORY 29, 46 P.

  • Other Database

    CIMRI

  • Production

    ( 1 ), ( 8 ) ABM BULLETIN 189 , P. 104

General comments

Subject category Comment text
Deposit WEATHERED AND OXIDIZED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1972 Bergquist, Joel R. U.S. Geological Survey
Updater 01-NOV-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-FEB-1993 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

Authoritative Arizona resources

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