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Mammoth Mine

Prospect in Juab county in Utah, United States with commodities Copper, 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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10202935
MRDS ID DC12846
MAS/MILS ID 0490230085
Record type Site
Current site name Mammoth Mine
Related records 10020237

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -112.10909, 39.93325 (WGS84)
Elevation 2146
Location accuracy 10(meters)

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 010 S 002 W 30 NWNENW Utah

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary

Materials information

Materials Type of material
Azurite Unknown
Barite Unknown
Calcite Unknown
Cerargyrite Unknown
Cerussite Unknown
Chalcocite Unknown
Covellite Unknown
Enargite Unknown
Famatinite Unknown
Galena Unknown
Gold Unknown
Hematite Unknown
Limonite Unknown
Malachite Unknown
Pyrite Unknown
Quartz Unknown
Silver Unknown
Wad Unknown

Nearby scientific data

Main Entrance (1) -112.10909, 39.93325
ListMap

Economic information

Ore body information

  • Dip 80N
    Thickness 30M
    Length 676M
    Width 30M
    Area 30HA
    Depth to top 400M
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 PIPELIKE
    Type of Orebody #2 FISSURE VEIN
    Shape of Orebody #2 IRREGULAR
    Shape of Orebody #3 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 UNKNOWN
    Type of Wallrock Alter. #2 SERICITIC
    Type of Wallrock Alter. #3 SILICIFICATION
    Strike And Dip :80N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 2
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 30
    Date of Last Modification 810922

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Deposit size Medium
Significant Yes
Discovery year 1870
Mining method Timbered Stopes - Overhand Square-Set
Year of first production 1872
Milling method Flotation

Mining district

District name Tintic District

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Private Lease

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Centurian Mines Corp.
    Interest 70
    Home office 331 S Rio Grande, Ste 201, Slc,Ut
    Year 1994

Comments on the ownership information

  • THE MILL RECOVERY OF LEAD AS PROPOSED IS LOW; HOWEVER, IT IS CLOSE TO ACTUAL DATA PROVIDED BY KENNECOTT MINERALS COMPANY PERSONNEL. THE OTHER MILL RECOVERIES PROPOSED ARE SPECULATIVE. IN SEPT 1994 CENTURIAN MINES CORP. REPORTED 100% OWNERSHIP IN THE MAMMOUTH MINE (CENTURIAN MINES CORP 1993 ANN REPT. P. 3.)

Production statistics

  • Year 1976
    Description Fluxing Ore Production. 6300 Short Tons
  • Year 1977
    Description Fluxing Ore Production. 25200 Short Tons
  • Year 1978
    Description Fluxing Ore Production. 25200 Short Tons
  • Year 1979
    Description Fluxing Ore Production. 6300 Short Tons

Reserves and resources

  • Type In-situ
    Estimate year 1994
    Indicated 68400mt ore
    Demonstrated 68400mt ore
    Total resources 68400mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 545 g/mt Silver Major 1994
    Copper Cu 8.77 wt-pct Copper Major 1994
    Gold Au 5.83 g/mt Gold Major 1994

Comments on the reserve resource information

  • QUANTITY MATRIX 1 WAS BASED ON THREE SOURCES OF INFORMATION: THE RESERVE ESTIMATE MADE IN 1976 BY THE UTAH GEOLOGICAL AND MINERAL SURVEY AND A PRODUCTION ESTIMATE MADE BY THE EVALUATOR (FROM 10-K FORM REPORTS OF YEARS 1977, 1978, AND 1979). THE GRADE COMES FROM UGMS OPEN-FILE REPORT 22, P. 210.

Workings at the site

  • Type of workings Underground
    Length 32200M
    Overall depth 800M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OVERHAND SQUARE-SET 10-46A
    Percent Waste Rock 0
    Percent Recovery 90
    Hardness of Rock SOFT NONPLASTIC WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. TIMBER
    Number of Shafts 1
    Avg. Length of Adits (m) 210
    Number of Adits 1
    1st Condition of Workings OPEN
    Capacity 75
    Capacity Units MT ORE/DAY
    Unit Production Cost 53.33
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1981

Comments on the workings information

  • THE MAXIMUM SURFACE AREA POTENTIALLY DISTURBED, 30 HECTARES, WAS ESTIMATED BY THE UTAH GEOLOGICAL AND MINERAL SURVEY.

Reference information

Bibliographic references

  • Reserve-Resource

    CENTURION MINES CORPORATION 1993 ANNUAL REPORT UPDATED

  • Reserve-Resource

    THROUGH MID-YEAR 1994. PP. 2,3.

  • Reserve-Resource

    PAYDIRT MAGAZINE (ROCKY MT EDITION). SEP 1994, P. 15A.

  • Deposit

    CAPITAL AND OPERATING COST ESTIMATING SYSTEM HANDBOOK.

  • Deposit

    STRAAM ENGINEERS, INC. USBM CONTRACT NO. JO255026.

  • Deposit

    REVISED EDITION, JUNE 1979, 374 PP.

  • Deposit

    DOELLING, H.H. UTAH GEOLOGICAL AND MINERAL SURVEY. PERSONAL

  • Deposit

    COMMUNICATION WITH F. AMARO, USBM-IFOC, OCT. 1980 AND

  • Deposit

    JUNE 1981.

  • Deposit

    LINDGREN, W. AND G.F. LOUGLHIN. GEOLOGY AND ORE DEPOSITS OF

  • Deposit

    THE TINTIC MINING DISTRICT, UTAH. USGS PROFESSIONAL

  • Deposit

    PAPER 107, PP. 214-217.

  • Deposit

    MAMMOTH MINING COMPANY. 10-K FORM REPORT, DEC. 31, 1977,

  • Deposit

    PART I, P. 3(?).

  • Deposit

    MAMMOTH MINING COMPANY. 10-K FORM REPORT, DEC. 31, 1978,

  • Deposit

    MAMMOTH MINING COMPANY. 10-K FORM REPORT, DEC. 31, 1979,

  • Deposit

    MELLOR, G. DISTRICT EXPLORATION GEOLOGIST, KENNECOTT

  • Deposit

    MINERAL CORPORATION. PERSONAL COMMUNICATION WITH F.

  • Deposit

    AMARO, USBM-IFOC, JUNE 1981.

  • Deposit

    PERRY, L.J. AND B.M. MCCARTHY. LEAD AND ZINC IN UTAH, 1976,

  • Deposit

    MAMMOTH MINE; UTAH GEOLOGICAL AND MINERAL SURVEY ECONOMIC

  • Deposit

    GEOLOGY SECTION. UGMS OPEN-FILE REPORT 22, USBM GRANT

  • Deposit

    NO. GO 264006, 1976, PP. 210-211.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-FEB-97 Amaro, R. U.S. Bureau of Mines

Beyond USGS

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

External references

Maps centered on this site