Hidden Treasure Mine

Past Producer in Beaver county in Utah, United States with commodities Copper, Iron, Silver, Gold
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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Reserves and resources
  20. Workings at the site
  21. Links to other databases
  22. Bibliographic references
  23. General comments
  24. Reporter information

Geologic information

Identification information

Deposit ID 10106579
MRDS ID M058880
Record type Site
Current site name Hidden Treasure Mine
Included sites OK Mine

Geographic coordinates

Geographic coordinates: -113.07691, 38.45496 (WGS84)
Elevation 1661
Relative position 7,550 FEET N 30 W FROM THE 5480 FOOT PEAK IN SECTION 26, T 27 S, R 11 W

Site location context

Political divisions (FIPS codes)

Beaver(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Milford(quadrangle 1:24,000 scale)

Wah Wah Mountains South(quadrangle 1:100,000 scale)

Richfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaver Bottoms-Upper Beaver(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 Beaver

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 027S 011W 22 NW OF NE OF NW Utah

Comments on the location information

  • INFO FROM LAND.ST :(1974)

Commodities

Commodity Importance
Copper Primary
Iron Tertiary
Silver Tertiary
Gold Tertiary

Materials information

Materials Type of material
Bornite Ore
Brochantite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Covellite Ore
Gold Ore
Malachite Ore
Diopside Gangue
Garnet Gangue
Serpentine Gangue
Wollastonite Gangue
Magnetite Unknown

Alteration

  • (Local) Contact Metasomatism

Analytical data

Result AVERAGE GRADE WAS 2% CU, 27% FE, 1 OZ/TON AG, .01 OZ/TON AU

Mineral occurrence model information

Model code 59
USGS model code 18b
Deposit model name Skarn Cu
Mark3 model number 8

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Toroweap
    Rock description Toroweap

Nearby scientific data

(1) -113.07691, 38.45496

Economic information

Geologic structures

Type of structure Regional
Structure description Seveir Orogenic Belt, Pioche Mineral Belt
Type of structure Local
Structure description Northeast Striking Faults

Ore body information

  • General form TABULAR
    Strike N 52 E
    Dip 90
    Thickness 73.15M
    Length 243.84M
    Width 60.96M
    Depth to top 27.43M
    Depth to bottom 100.58M

Controls for ore emplacement

  • Contact Between Limestone And Intrusive Northeast Striking Faults.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant Yes
Discovery year 1960
Discoverer American Mining Company
Year of first production 1974

Mining district

District name Rocky Range District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Essex International
  • Type Owner
    Owner American Mining Co.

Reserves and resources

  • Type In-situ
    Estimate year 1998
    Indicated 856000mt ore
    Remarks at .4% cutoff grade\nMDA estimate, 1998
    Commodity Subtype Grade units Group Importance Year
    Copper 1.79 wt-pct Copper Primary 1998
  • Type In-situ
    Estimate year 1998
    Indicated 828000mt ore
    Remarks at .6% cutoff grade\nMDA estimate, 1998
    Commodity Subtype Grade units Group Importance Year
    Copper 1.84 wt-pct Copper Primary 1998
  • Type In-situ
    Estimate year 1998
    Indicated 775000mt ore
    Remarks at 1% cutoff grade\nMDA estimate, 1998
    Commodity Subtype Grade units Group Importance Year
    Copper 1.9 wt-pct Copper Primary 1998

Comments on the reserve resource information

  • WHELAN, 1982

Workings at the site

  • Type of workings Underground
    Area 3.505HA
    Overall depth 60.96M
    Overall length 304.8M
    Overall width 121.92M

Comments on the workings information

  • WORKINGS CONSIST OF ONE PIT WITH RAMP DOWN FROM WEST END. TOTAL DEPTH LESS THAN 200 FEET

Comments on development

  • DISCOVERED BY GROUND MAGNETIC SURVEY, DRILLED OUT BY AMERICAN MINING CO., DEPOSIT MINED BY ESSEX INTERNATIONAL IN 1974
  • ******SEE OK Mine; Deposit ID 10101379 for detailed info

Reference information

Bibliographic references

  • Development

    MDA-Western States Engineering, 1998 OK Mine Profect Feasibility Study, Vol. 1 Nevada Star Resource Corp. private report, Dec. 1998

  • Deposit

    WHELAN, J.A., 1982, GEOLOGY, ORE DEPOSITS, AND MINERALOGY OF THE ROCKY RANGE, NEAR MILFORD, BEAVER COUNTY, UTAH: UGMS SPECIAL STUDIES NO. 57, 35 P.

  • Deposit

    SHUBAT, M.A., 1985, ON-SITE INVESTIGATION; UGMS

General comments

Subject category Comment text
Deposit DEPOSIT CONSISTS OF A COPPER-RICH WALLASTENITE-MAGNETITE-SERPENTINE-DIOPSIDE-GARNED SKARN. SKARN LOCALLIZED BY INTRUSIVE CONTACT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1985 Shubat, Michael A. Utah Geological and Mineral Survey

Beyond USGS

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