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Keystone Mine

Past Producer in Cochise county in Arizona, United States with commodities Copper, Zinc, Molybdenum, Lead, Tungsten, Gold, Silver
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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. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10039383
MRDS ID M050006
Record type Site
Current site name Keystone Mine
Alternate or previous names Hagerman Mine, Ok Mine, Bannon Group Which Includes Claims: Mary, Calumet, Ultimo, Charles, Nevertheless, O.K., Ella, Gustave, Wolfrime, Louie, Ernest, Erika, Roswell, Hagerman, Dora, Ina, Esmeralda, Halderman, Gladys, Maher
Related records 10112771

Geographic coordinates

Geographic coordinates: -110.05844, 32.0929 (WGS84)
Elevation 1487
Relative position 3/4 MI SE OF TOWN OF JOHNSON, 6 MI N OF DRAGOON.

Site location context

Political divisions (FIPS codes)

Cochise(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dragoon(quadrangle 1:24,000 scale)

Tucson(quadrangle 1:100,000 scale)

Tucson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Willcox Playa(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 015S 022E 36 NW4 Arizona

Comments on the location information

  • 1.1 KM SW OF REPUBLIC MINE ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary
Molybdenum Secondary
Lead Secondary
Tungsten Critical Secondary
Gold Secondary
Silver Secondary

Comments on the commodity information

  • MOST ORE CAME FROM UPPER LEVELS IN MARTIN & ESCABROSA FORMATIONS. ABRIGO FORMATION MINERALIZED SPORADICALLY IN VICINITY OF INFERRED FAULT. MOLYBDENITE OCCURS IN ABRIGO. DRILLING INDICATES 0.9 FT OF 4.1% MO AND 7.3 FT OF 1.02% MO.

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Gold Ore
Molybdenite Ore
Pyrite Ore
Scheelite Ore
Silver Ore
Sphalerite Ore
Garnet Gangue

Alteration

  • (Local) Limestone Is Metamorphosed To Tactite Characterized By Diopside, Tremolite, K-Feldspar, Quartz

Analytical data

Result 0.6-1.2% CU, 1 FT BED 4.1% MO, 7 FT OF 1.02% MO

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Texas Canyon Quartz Monzonite
    Rock description Texas Canyon Quartz Monzonite
    Stratigraphic age (youngest) Tertiary
    Chronological age 53
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Abrigo Formation; Martin Formation; Escabrosa Limestone
    Rock description Abrigo Formation; Martin Formation; Escabrosa Limestone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1) -110.05844, 32.0929
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Nw Tert Block Faulting, Lcret Or Etert N & Nw Trending Folds And Thrust Faulting
Type of structure Local
Structure description N63e Normal Fault Dips 36se; Keystone Fault With A Horizontal Displacement Of About 1200 Ft

Ore body information

  • General form TABULAR, CHIMNEYS, MANTOS

Controls for ore emplacement

  • Favorable Beds Cut By Fault

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1908
Year of first production 1915
Year of last production 1958

Mining district

District name Cochise District

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Length 396.24M

Comments on the workings information

  • DRILLING BY USBM; VERTICAL SHAFT 650 FT, LEVELS AT 60, 200, 325, 487, & 565 FT BELOW SURFACE. MAIN PERPENDICULAR HAGERMAN SHAFT CONSISTS OF TWO COMPARTMENTS, BEGINNING AT THE THIRD LEVEL, STATIONS AND ORE POCKETS HAVE BEEN CUT 100 FT APART. THE OK SHAFT IS AN INCLINE WITH AN AVERAGE INCLINATION OF 34 DEG AND MEASURES 385 FT FROM COLLAR TO BOTTOM. THERE ARE SEVERAL OTHER VERTICAL AND INCLINED SHAFTS TENS OF FT DEEP WITH NUMEROUS PITS AND SMALL OPEN STOPES. LENGTH OF WORKINGS IS ESTIMATED.

Comments on development

  • 16 CLAIMS. OPERATORS INCLUDED STRONG & MOSELEY, BLACK PRINCE CO.

Reference information

Bibliographic references

  • Deposit

    COOPER & SILVER, 1964, USGS PP 416.

  • Deposit

    COOPER, 1950, ABM BULL 156.

  • Deposit

    ROMSLO, 1949, USBM RI 4504.

  • Deposit

    KEITH, 1973, ABM BULL 187.

  • Deposit

    ABGMT CLIPPINGS FILE.

  • Deposit

    LIVINGSTON ET AL, 1967, JGR, V. 72, P. 1361-1375.

  • Deposit

    SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: U.S. BUREAU OF MINES SPECIAL PUBLICATION, 334 P.

General comments

Subject category Comment text
Deposit ORE OCCURS ALONG THE PLANE OF THE BEDS AND ORE BODIES HAVE THEIR LONG AXIS PARALLEL TO THE DIP OF THE BEDS
Deposit THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050006 WITH RECORD M030573 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEODORE, USGS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1983 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-FEB-1994 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

External references

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.