Mammoth Mine

Past Producer in Juab county in Utah, United States with commodities Gold, Silver, Copper, Lead, Zinc, Arsenic
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  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 10020237
MRDS ID DC12846
Record type Site
Current site name Mammoth Mine
Alternate or previous names Mammoth Hoist and Adit
Related records 10202935

Geographic coordinates

Geographic coordinates: -112.11218, 39.93217 (WGS84)
Elevation 2146
Relative position 2400 FT. N 85 W OF MAMMOTH PEAK

Site location context

Political divisions (FIPS codes)

Juab(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Eureka(quadrangle 1:24,000 scale)

Lynndyl(quadrangle 1:100,000 scale)

Delta(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sevier(hydrologic unit)

Escalante Desert-Sevier Lake(hydrologic accounting unit)

Escalante Desert-Sevier Lake(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Utah Juab

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 010S 002W 30 NE OF NW Utah

Comments on the location information

  • HEAD OF CANYON WEST OF MAMMOTH; EAST SLOPE OF MAMMOTH PEAK HOIST IS UTM ; INFO FROM LAND.ST :1977

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Enargite Ore
Galena Ore
Sphalerite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Bluebell Dolomite;Ophir Shale
    Rock description Bluebell Dolomite;Ophir Shale

Nearby scientific data

(1) -112.11218, 39.93217

Economic information

Geologic structures

Type of structure Local
Structure description Mammoth Fault Offsets Ore

Ore body information

  • General form BLANKET, PIPE
    Plunge direction W
    Length 304.8M
    Width 15.24M
    Depth to top 0M

Controls for ore emplacement

  • Sioux A Jax Fault And Northeast Fissure

Comments on the geologic information

  • DEEP ORE SOUTH OF SHAFT, S OF SIOUX A JAX IN DAGMAR DOLOMITE. 1000 FT WORKINGS ON 2600 SOUGHT OPHIR LIMESTONE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1871
Discoverer C.C. Crismon?
Year of first production 1872
Year of last production 1980

Mining district

District name Tintic District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Kennecott Copper Corp.
    Home office Salt Lake City, Ut.
  • Type Owner
    Owner Mammoth Mining Co.
    Home office C/O E. Steele Mcintyre Eureka, Ut.

Production statistics

  • Year 1977
    Period 1976-1977
    Accuracy Accurate
    Description Cp_Grade: ^.05 Oz Au, 2.5 Oz Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 71g/mt
    Major Gold Gold 1g/mt

Comments on the production information

  • POSSIBLY 50 TONS PRODUCED 1979. CUMULATIVE SIL IS SILICEOUS DUMP ORE

Workings at the site

  • Type of workings Underground
    Length 914.4M
    Overall depth 798.58M
    Overall length 12874.4M

Comments on the workings information

  • VERTICAL SHAFT, ONE TO THREE COMPARTMENTS, WITH TIMBERS CABLES TOGETHER IN SOME OPEN STOPES. ELECTRIC HOIST ON 300 OR ADIT LEVEL. DEEPENED FROM 2100 TO 2600 BY C. STEEN IN 1960S. LEVELS EVERY 100 FT.

Comments on development

  • PRESENT OWNERS' GRANDPARENTS ACQUIRED MINE IN 1877 OR 78 AND OPERATED UNTIL 1954. PURCHASED FOR 1400 HEAD OF CATTLE.

Reference information

Bibliographic references

  • Deposit

    MORRIS, H.T., AND LOVERING, T.S., 1979, GENERAL GEOLOGY AND MINES OF THE EAST TINTIC MINING DISTRICT, UTAH AND JUAB COUNTIES, UTAH: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1024, 194 PP.

  • Deposit

    COOK, D.R., ED., 1957, GEOLOGY OF THE EAST TINTIC MOUNTAINS AND ORE DEPOSITS OF THE TINTIC MINING DISTRICTS: UTAH GEOL. SOC. GUIDEBOOK, NO. 12, 183 P.

  • Deposit

    MORRIS, H.T., 1964, GEOLOGY OF THE EUREKA QUADRANGLE, UTAH AND JUAB COUNTIES, UTAH: U.S. GEOLOGICAL SURVEY BULLETIN 1142-K, P. K1-K29.

  • Deposit

    LINDGREN, WALDEMAR, AND LOUGHLIN, G.F., 1919, GEOLOGY AND ORE DEPOSITS OF THE TINTIC MINING DISTRICT, UTAH: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 107, 276 PP.

  • Deposit

    MCINTYRE, E. STEELE, PERSONAL INTERVIEW, OCTOBER 1983.

  • Deposit

    MORRIS, H.T., 1968, THE MAIN TINTIC MINING DISTRICT IN RIDGE, J.D. EDITOR, GRATON SALES VOLUME, AIME.

  • Deposit

    FULL, R.P., 1966, REPORT AND MAP FOLIO, MAMMOTH MINE, PRIVATE REPORT TO NEW PARK MINING CO., 1 INCH = 200 FT.

  • Production

    MCINTYRE, 1983

General comments

Subject category Comment text
Deposit PIPE AT INTERJECTION OF MINOR AND MAJOR FAULTS
Deposit MAMMOTH ORE BODY IN UPPER LEVELS WAS FAULTED TO GRAND CENTRAL 800 LEVEL. CONNECTIONS DRIVEN BY KENNECOTT. 1600 LEVEL USED TO MINEE GOLD CHAIN ORES. BRECCIA ADJACENT TO ORE AT SURFACE STOPE CONTAINS COPPER CARBONATE CLASTS. STOPE CONTAINS STRONG IRON OXIDES. MASSIVE PYRITE AT DEPTH. WATER BELOW 2400 LEVEL, 200 GALLONS PERIMINUTE AT 2600. ROLLIN BRAY LAST MINE SUPERINTENDENT. ; INFO.SRC : 1 PUB LIT; 5 PERS COMM

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1983 James, Laurence P. Utah Geological and Mineral Survey

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

External references