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Apex Mine

Past Producer in Summit county in Utah, United States with commodities Lead, Silver, Gold, Zinc, 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 10014908
MRDS ID D012010
Record type Site
Current site name Apex Mine
Alternate or previous names Silver King Coalition Group, United Park City Mines, Kearns and Keith Mine
Related records 10202903

Geographic coordinates

Geographic coordinates: -111.54106, 40.62216 (WGS84)
Elevation 2670
Relative position 3250 FT N4W FROM JUPITER HILL

Site location context

Political divisions (FIPS codes)

Summit(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Brighton(quadrangle 1:24,000 scale)

Salt Lake City(quadrangle 1:100,000 scale)

Salt Lake City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Weber(hydrologic unit)

Weber(hydrologic accounting unit)

Great Salt Lake(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Utah Summit

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 002S 004E 30 NE OF NE OF NW Utah

Comments on the location information

  • INFO FROM LAND.ST :1983

Commodities

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

Materials information

Materials Type of material
Argentite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Tetrahedrite Ore
Calcite Gangue
Quartz Gangue
Pyrite Unknown

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Intermediate Dikes
    Rock description Intermediate Dikes
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Thaynes Formation
    Rock description Thaynes Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) Alluvium and colluvium
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Uinta-Cottonwood Arch, Sevier Overthrust Belt, Park City Anticline, Iron Hollow Syncline
Type of structure Local
Structure description Crescent Fault Zone

Ore body information

  • General form TABULAR
    Strike N45E TO N80E
    Dip 45 SE TO 80 SE
    Thickness 9.14M
    Width 45.72M
    Depth to top 0M
  • General form TABULAR
    Dip 45 SE TO 80 SE

Controls for ore emplacement

  • Northeast Striking Fracture Zones, Limestone Beds Adjacent To Fracture Zones

Comments on the geologic information

  • WORKINGS ARE IN THE THAYNES FORMATION ALONG THE FOOTWALL OF THE MAIN CRESCENT FAULT. PRODUCTION PROBABLY CAME FROM REPLACEMENT AND VEIN DEPOSITS LOCATED ALONG SUBSIDIARY FRACTURES OF THE CRESCENT FAULT

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1883
Year of last production 1892

Mining district

District name Park City District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner United Park City Mines Co.

Workings at the site

  • Type of workings Underground
    Area 1.051HA
    Length 487.68M
    Overall depth 182.88M
    Overall length 91.44M
    Overall width 121.92M

Comments on the workings information

  • A MAIN ACCESS TUNNEL IS 400 FT LONG AND LEADS TO A NARROW ZONE OF WORKINGS AT FOUR LEVELS ABOUT 300 FT IN LENGTH EACH. ALSO PRESENT ON PROPERTY IS A PROSPECT ADIT ADJACENT TO THE MAIN TUNNEL

Comments on development

  • ORE STRIKES IN THE REBELLION AND CLIMAX MINES IN 1880 ATTRACTED PROSPECTORS TO THE AREA. THE APEX MINE WAS OPERATING AND PRODUCING BY 1883. ACTIVITY CEASED IN THE EARLY 1890'S. THE APEX PAID ITS FIRST DIVIDEND IN 1888. IN 1903 THE PROPERTY WAS CONSOLIDATED WITH OTHERS TO FORM THE KEARNS-KEITH MINE. PROPERTIES CONSOLIDATED LATER WITH SILVER KING COALITION MINES CO. IN 1908 AND WITH UNITED PARK CITY MINES CO. IN 1953

Reference information

Bibliographic references

  • Deposit

    BOUTWELL, J.M., 1912, GEOLOGY AND ORE DEPOSITS OF THE PARK CITY DISTRICT, UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 77, 231 PP.

  • Deposit

    ERIKSON, A.J., (EDITOR), 1968, PARK CITY DISTRICT, UTAH: GUIDEBOOK TO THE GEOLOGY OF UTAH, NO. 22, UTAH GEOLOGICAL SOCIETY.

  • Deposit

    BUTLER, B.S., LOUGHLIN, G.F., HEIKES, V.C., AND OTHERS, 1920, THE ORE DEPOSITS OF UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 111, 672 PP.

  • Deposit

    BARNES, M.P., AND SIMOS, JS.S., 1968, ORE DEPOSITS OF THE PARK CITY DISTRICT WITH A CONTRIBUTION ON THE MAYFLOWER LODE, IN ORE DEPOSITS OF THE UNITED STATES: AM. INST. METALL, ENG., V. II, P. 1102

  • Deposit

    BAKER, AA. CALKINS F.D., CRITTENDEN, M.D., JR., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S., GEOL SURVEY GEOL. QUAD. MAP GQ-534

General comments

Subject category Comment text
Deposit BOTH REPLACEMENT AND FISSURE TYPE ORE BODIES PROBABLY PRESENT. REPLACEMENT BODIES LOCATED WITHIN THAYNES FORMATION ALONG THE FOOTWALL OF THE MAIN CRESCENT FAULT ZONE. REPLACEMENT HORIZONS STRONGLY CONTROLLED BY LIMESTONE BEDS IN PROXIMITY TO FEEDERS. MINERALIZATION PROBABLY CONTROLLED BY SUBSIDIARY FOOTWALL FRACTURES OF THE CRESCENT FAULT
Deposit NO PRODUCTION FIGURES GIVEN ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1984 Shubat, Michael A. Utah Geological and Mineral Survey

Beyond USGS

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

External references

Maps centered on this site