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Leroy Mine Group

Past Producer in Cochise county in Arizona, United States with commodities Lead, Zinc, Silver, Copper, 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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  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 10027114
MRDS ID M002136
Record type Site
Current site name Leroy Mine Group
Alternate or previous names Black Hawk, Climax, Comet, Onetda, Gold Queen, Standard, Jack Dempsey, Lost Hope, War Eagle. Pamerset
Related records 10258052

Geographic coordinates

Geographic coordinates: -109.58204, 32.18068 (WGS84)
Relative position ABOUT 1.5 MI. NE OF DOS CABEZAS, ARIZ.

Site location context

Political divisions (FIPS codes)

Cochise(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dos Cabezas(quadrangle 1:24,000 scale)

Willcox(quadrangle 1:100,000 scale)

Silver City(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 014S 027E 27;33;34 SW (27); NE (33); NW (34) Arizona

Comments on the location information

  • LOCATION GIVEN IS FOR SOUTHERN MOST SHAFT. INFO FROM LAND.ST :(1979)

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Niccolite Ore
Sphalerite Ore
Quartz Gangue
Pyrite Unknown

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -109.58204, 32.18068
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Quartz Monzonite Body Is In Fault Contact With Cret Sediments To The North And In Concordant Contact With Cambrian Sediments To The South. E-W Trends On Bedding And On Fault
Type of structure Local
Structure description Faulting And Shearing Within The Quartz Monzonite Cuts Ore Veins

Ore body information

  • General form IRREGULAR
    Strike NE
    Dip 65SE

Comments on the geologic information

  • ORE IN COARSELY-TEXTURED, CROSSCUTTING QUARTZ VEINS ALONG FAULT AND SHEARS CUTTING GRANITIC ROCKS. ACCOMPANIED BY INTRUSIVE DIABASE DIKES.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1890
Year of first production 1890
Year of last production 1953

Mining district

District name Mascot District, Dos Cabezas District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Vmp Leasing Co., Bean

Comments on the production information

  • A FEW THOUSAND TONS OF ORE PRODUCED IN 1880'S AND SOME 4,000 TONS INTERMITTENTLY IN 1900'S UP TO 1950.

Workings at the site

  • Type of workings Unknown
    Length 1219.2M
    Overall depth 137.16M

Comments on the workings information

  • 2 SHAFTS, CLIMAX AND LEROY, AND NUMEROUS TUNNELS AT LEAST 2000 FT WORKINGS IN CLIMAX, 3 LEVELS, 1500 FT WORKINGS ON LEROY, 3 LEVELS, AND ONE TUNNEL THE ONEIDA, IS 500 FT LONG, WITH 500 FT SIDE DRIFTS

Comments on development

  • OPERATORS INCLUDED LEROY CONSERVATION OF MINES, DORSEY BROS., RICE BROS., ARILAND MINES CO., FRANK PETERSON, MILLER LEASING. Z.P. ISSACSON. 6 PATENTED CLAIMS IN 1964

Reference information

Bibliographic references

  • Deposit

    ARIZ. B. OF M. BULL. 137, 1934, P.120, 121.

  • Deposit

    ELSING, M.J., AND HEINEMAN, R.E.S., 1936, ARIZONA BUREAUOF MINES BULLETIN 140, P. 91.

  • Deposit

    KEITH, S.B., 1973, ARIZONA BUREAU OF MINES BULLETIN 187, 62.

  • Deposit

    ARIZONA DEPT OF MINERAL RESOURCES FILE DATA.

  • Deposit

    COOPER, J.R,. 1960, U.S. GEOLOGICAL SURVEY MINERAL INVESTIGATIONS FIELD STUDIES MAP MF-231.

  • Deposit

    MOORE, R.T., AND ROSEVEARE, G.H., 1969, MINERAL AND WATER RESOURCES OF ARIZONA: U.S. 90TH CONGRESS, 2ND SESSION, SENATE COMMITTEE ON INTERIOR AND INSULAR AFFAIRS, P. 257 AND 259.

  • Other Database

    CIMRI

  • Production

    KEITH, 1973, ARIZ. BUREAU OF MINES BULL. 187.

General comments

Subject category Comment text
Deposit MOST VEINS STRIKE NE AND DIP 65 SE. ORE VEIN AT ONEIDA TUNNEL, N-S, 64W, 2 FT IN WIDTH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 Gere, W. U.S. Geological Survey
Updater 01-DEC-1981 Gest, Don E. U.S. Geological Survey
Updater 01-MAY-1995 Orris, Greta J. 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.