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  3. Mineral Resource Data System (MRDS)

Mammoth Mine

Producer in Greenlee county in Arizona, United States with commodity Copper
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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. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10027006
MRDS ID M001702
Record type Site
Current site name Mammoth Mine
Alternate or previous names Arizona Copper Co Group

Geographic coordinates

Geographic coordinates: -109.35926, 33.13871 (WGS84)
Elevation 1609
Relative position 2.0 MILES NW OF METCALF

Site location context

Political divisions (FIPS codes)

Greenlee(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mitchell Peak(quadrangle 1:24,000 scale)

Clifton(quadrangle 1:100,000 scale)

Clifton(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Francisco(hydrologic unit)

Upper Gila(hydrologic accounting unit)

Upper Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Greenlee

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 003S 029E 28 SE Arizona

Comments on the location information

  • LOCATED IN GARFIELD GULCH, 0.5 MILE E FROM THE MOUTH OF THE CANYON; CLAIMS EXTEND INTO THE SE QUARTER OF SECTION 27 ; INFO FROM LAND.ST :(1973)

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chrysocolla Ore
Malachite Gangue

Alteration

  • (Local) Pure Kaolin Occurs, No Sulfide Ore Is Present

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Rock unit name Morenci Granite Porphyry
    Rock description Morenci Granite Porphyry
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Late Ordovician
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Longfellow Limestone
    Rock description Longfellow Limestone

Nearby scientific data

(1) -109.35926, 33.13871
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Normal Faulting Confined To Pre-Tertiary Rocks
Type of structure Local
Structure description Vicinity Is Extensively Faulted ; At The Ne End Of The Tunnel, The Main Fissure Appears To Break Into The Porphyry And Is Complicated By Faulting

Ore body information

  • General form TABULAR
    Strike N E
    Dip 50 NW
  • General form TABULAR
    Dip 50 NW

Controls for ore emplacement

  • Ne Trending Fissure Vein Follows Main Contact Between Limestone And 200 Ft Thick Porphyry Dike; Ore Bodies Chiefly Occur In Limestone And Not In Porphyry

Comments on the geologic information

  • PORPHYRY DIKE CONTINUES FROM THE MINE FOR .25 MILE TO THE NE, WHERE DIKE AND LIMESTONE BEDS ARE COVERED BY BASALT AND RHYOLITE TERTIARY FLOWS; LONGFELLOW LIMESTONE BEDS DIP 10NNW IN THE VICINITY OF THE MINE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1872
Discoverer Isaac Stevens
Year of first production 1890

Mining district

District name Copper Mountain Cistrict

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Phelps Dodge Corp., Morenci Branch )
    First year 1922

Comments on the production information

  • PRODUCTION DATA INCLUDED ON LONGFELLOW METCALF MINE DATA; LONGFELLOW METCALF ALSO INCLUDES THE OTHER ARIZ COPPER CO LTD MINES OF DETROIT, LONGFELLOW, METCALF, YAVAPAI, JOY, HUMBOLDT, AND CORONADO

Workings at the site

  • Type of workings Underground
    Length 243.84M
    Overall depth 30.48M

Comments on the workings information

  • DEVELOPMENTS INCLUDED ONE TUNNEL 800 FT LONG, WITH EXTENSIVE OPEN STOPING ABOVE IT; ONE WINZE 100 FT DEEP, SUNK FROM THE LOWER TUNNEL LEVEL

Comments on development

  • OWNERS AND OPERATORS INCLUDED ROBERT METCALF, LESZYNSKY BROTHERS, ARIZ COPPER CO LTD

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 2 PATENTED CLAIMS: (MAMMOTH, LITTLE MAMMOTH MINE); CHRYSOCOLLA OCCURS ONLY IN KAOLIN GANGUE ALONG THE CONTACT OF PORPHYRY AND SEDIMENTARY SERIES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-JAN-1982 Calder, Susan R. 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.