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Keystone and Hard Times Mine

Past Producer 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. 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 10011402
MRDS ID D006200
Record type Site
Current site name Keystone and Hard Times Mine
Related records 10227383

Geographic coordinates

Geographic coordinates: -113.03831, 39.56051 (WGS84)
Elevation 1969
Relative position 1 MILE SE OF LADY LAIRD PEAK SHOWN AS 2 SHAFTS ON TOPO MAP

Site location context

Political divisions (FIPS codes)

Juab(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lady Laird Peak(quadrangle 1:24,000 scale)

Fish Springs(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 014S 011W 36,35 Utah

Comments on the location information

  • SECTION SUBDIVISIONS NE 1/4 NW 1/4 SW 1/4 36 FOR KEYSTONE, NE 1/4, NE 1/4, SE 1/4, 35 FOR HARDTIMES

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore
Malachite Ore

Alteration

  • (Local) Limonitic

Analytical data

Result FROM BOTTOM OF DRIFT 50 FT BELOW BOTTOM OF PIT: 6.72% CU, 0.40 OZ AG, 0.04 OZ AU
Result ALSO 21.17% CU, 0.50 OZ AG, 0.27 OZ AU AVERAGE FROM DUMP (1916): 8% CU, 1.70 OZ AG, 0.12 OZ AU: ANOTHER DUMP 7.6% CU, 3.0 OZ AG, 0.68 OZ AU

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Limestone
    Rock description Limestone
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -113.03831, 39.56051
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Drum Mtns Homocline
Type of structure Local
Structure description Keystone Fault

Ore body information

  • Width 45.72M

Controls for ore emplacement

  • Local Ne Trending Faults

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discoverer Ut. Central Mining Co.

Mining district

District name Detroit District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Utah Central Mining Co.
    First year 1933

Comments on the production information

  • ITEMS 1-4 ARE FOR OCTOBER AND NOVEMBER 1933. SMELTER RETURNS: 11-26-1915 44,668 LB AT $11.26/T = $250.29 NET; 11-27-1916: 38,376 LB AT $33.20/T = $635.10 NET

Workings at the site

  • Type of workings Surface/Underground
    Length 481.89M
    Overall depth 192.63M
    Overall length 60.96M
    Overall width 45.72M

Comments on the workings information

  • WORKINGS CONSISTS OF LEVELS AT 100, 200, 300, 425, 498, AND 632; LEVEL 100 HAS 100 FT OF WORKINGS; LEVEL 200 HAS 350 FT; 300 HAS 60 FT; 425 HAS 275 FT, 498 HAS 22 FT; 632 HAS 142 FT.

Comments on development

  • LITTLE EFFORT WAS MADE FOR EXPLORATION IN THE BEGINNINGS OF THIS MINE. THE OPERATORS WERE SATISFIED WITH HIGH GRADING. THERE MAY STILL BE CONSIDERABLE LOW GRADE ORE UNDEVELOPED

Reference information

Bibliographic references

  • Analytical Data

    SRC.REF: COMPANY REPORT APRIL 1916

  • Deposit

    EVERTS, M.L., 1980, UT. GEOL. & MIN. SURVEY, ON SITE INVESTIGATION

  • Deposit

    CRANE, G.W., 1934, HOLDINGS OF UTAH CENTRAL MINES COMPANY: COMPANY REPORT.

  • Deposit

    1920 RECON BUTLER, USGS PP 111

  • Deposit

    1961 RECON CRITTENDEN, USGS BULL. 1082-H

  • Production

    CRANE G.W., 1934, COMPANY REPORT: UTAH CENTRAL MINES CO.

General comments

Subject category Comment text
Deposit SURFACE QUARRY OPENED A VEIN 60-100 IN WIDTH. SHAFT IS 632 FT DEEP. THE OPEN PIT PRODUCED HIGH GRADE CU ORE CARRYING 2-3 DOLLAR AU (1916 PRICES)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1980 Everts, Michael L. Bureau of Land Management

Beyond USGS

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

Maps centered on this site