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Defense Mine

Past Producer in Cochise county in Arizona, United States with commodities Silver, Lead, Gold
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10046213
MRDS ID M241065
Record type Site
Current site name Defense Mine
Alternate or previous names Northwest Shaft, Norhtwest Mine
Related records 10258426

Geographic coordinates

Geographic coordinates: -110.06872, 31.70791 (WGS84)
Elevation 1379
Relative position APPROX 1/3 MI S OF TOMBSTONE.

Site location context

Political divisions (FIPS codes)

Cochise(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tombstone(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper San Pedro(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Cochise

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 020S 022E 11 Arizona

Comments on the location information

  • S CENTRAL 11.

Commodities

Commodity Importance
Silver Primary
Lead Primary
Gold Primary

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) Bisbee Limestone Is Recrystallized. Sand And Shale Converted To Hornfels Prior To Mineralization

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock
    Rock unit name Bisbee Group Beds
    Rock description Bisbee Group Beds
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -110.06872, 31.70791
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description In Tombstone Basin, Along Defense Fissure. Fissure Trends Ne, Becoming Easterly At Its East End

Ore body information

  • General form VEIN

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Tombstone District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Tombstone Milling And Mining Co.
  • Type Operator
    Owner Tombstone Consolidated Mines Co.
  • Type Operator
    Owner Bunker Hill Mines Co.
  • Type Operator
    Owner Tombstone Development Co.

Comments on the production information

  • A FEW THOUSAND TONS OF ORE PRODUCED . PRODUCTION INCLUDED UNDER TOMBSTONE GROUP

Comments on the workings information

  • SURFACE AND UNDERGROUND WORKINGS.

Reference information

Bibliographic references

  • Deposit

    KEITH, S B, 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P 75.

  • Deposit

    ABM BULL 143, 1938

  • Production

    KEITH, 1973, ARIZ BUR OF MINES BULL 187.

General comments

Subject category Comment text
Deposit OXIDIZED ARGENTIFEROUS LEAD MINERALIZATION ALONG THE DEFENSE FISSURE ZONE WHERE INTERSECTS CROSSING ROLLS IN FAVORABLE CRET BEDS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1980 Zigler, Jan L. U.S. Geological Survey
Updater 01-NOV-1981 Gest, Don E. 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.