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California Mine Shop Tunnel

Past Producer in Summit county in Utah, United States with commodities Lead, Silver, 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 10014909
MRDS ID D012013
Record type Site
Current site name California Mine Shop Tunnel
Alternate or previous names Silver King Coalition Group, United Park City Mines

Geographic coordinates

Geographic coordinates: -111.54634, 40.62161 (WGS84)
Elevation 2697
Relative position 3500 FT N 30 W 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 NW OF NW Utah

Comments on the location information

  • INFO FROM LAND.ST :1983

Commodities

Commodity Importance
Lead Primary
Silver Primary
Zinc Critical Primary
Copper Tertiary

Materials information

Materials Type of material
Galena Ore
Jamesonite Ore
Sphalerite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Rock unit name Intermediate Dikes
    Rock description Intermediate Dikes
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Thaynes Formation;Woodside Shale
    Rock description Thaynes Formation;Woodside Shale

Nearby scientific data

(1) -111.54634, 40.62161
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Vinta-Cottonwood Arch, Sevier Overthrust Belt, Iron Hollow Syncline
Type of structure Local
Structure description Northeast Striking Fissures

Ore body information

  • General form TABULAR
    Strike N 45 E TO N 60 E
    Dip 70 SE TO 70 SE
    Depth to top 0M
  • General form TABULAR
    Dip 70 SE TO 70 SE

Controls for ore emplacement

  • Northeast Striking Fissures, Intersection Of Fissures And Favorable Bedding Planes

Comments on the geologic information

  • FAULTING WAS BOTH PRE-AND POST MINERAL IN AGE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1885
Year of first production 1881
Year of last production 1925

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 Surface/Underground
    Length 30.48M

Comments on the workings information

  • THE UPPER TUNNEL EXTENDS NORTHWESTWARD ABOUT 100 FT TO THE MAIN WORKINGS. MAIN WORKINGS COMPRISED OF AN EXTENSIVE STOPE A NORTHEAST DRIFT 600 FT LONG ON THE LEVEL ABOVE THE LOWER TUNNEL, AND TWO PARALLEL NORTHEAST DRIFTS 600 AND 400 FT LONG ON THE LOWER LEVEL. OTHER WORKINGS INCLUDE AN UPPER TUNNEL AND AN INTERMEDIATE LEVEL. INTERMEDIATE LEVEL CONNECTED WITH THE LOWER LEVEL BY A CHUTE AND WITH THE UPPER TUNNEL BY A 20 DEGREE INCLINED STOPE. ALSO ON PROPERTY IS A 18 FT DEEP SHAFT. TOTAL LENGTH OF WORKINGS IS ABOUT 3000 FT. LOWER TUNNEL ALSO CALLED THE MAIN TUNNEL. UPPER TUNNEL CALLED THE SHOP TUNNEL. A PROSPECT PIT IS LOCATED NEAR THE MOUTH OF THE SHOP TUNNEL

Comments on development

  • PROSPECTING BEGAN AROUND 1880 WITH HEAVY PROSPECTING IN 1881, 1883, 1889, 1893 AND 1900. THE CALIFORNIA MINE SUSPENDED ITS OPERATIONS, IN EARLY 1883 BECAUSE OF HIGH WATER FLOW BUT REOPENED THAT YEAR. IN MARCH 1885 THE LOWER TUNNEL OR THE MAIN MINE TUNNEL WAS STARTED AFTER CONSIDERABLE LEAD-ZINC ORE HAD BEEN FOUND. OLD APEX MILL WAS PURCHASED AND REMODELED IN 1900 APEX MILL RUNNING IN 1900 AND GOOD ORE BODY DISCOVERED IN 1901. OWNERSHIP DISPUTES AROSE IN 1902 UNDER THE APEX LAW. PROPERTY WAS IN ACTIVE BY 1908. CONSOLIDATED WITH SILVER KING COALITION MINES CO. AROUND 1908. LATER CONSOLIDATED WITH UNITED PARK CITY MINES 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

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

  • Deposit

    BARNES, M.P., AND SIMOS, J.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

General comments

Subject category Comment text
Deposit PROMINENT FRACTURE ZONE IS PRESENT STRIKING NORTHEAST AND DIPPING STEEPLY TO THE SOUTHEAST. THE MAIN ZONE OF FRACTURING IS THE FOOTWALL OF A PORPHYRY DIKE. MINERALIZATION IS WITHIN OR ADJACENT TO NORTHEAST STRIKING FISSURES. BOTH VEIN AND REPLACEMENT ORE BODIES ARE PRESENT. HOST ROCK FOR REPLACEMENT BODIES IS THIN-BEDDED SHALY LIMESTONES OF THE THAYNES FORMATION PROMINENT ORE BODY IS A LENS OF REPLACEMENT ORE IN THE FOOTWALL OF THE MAIN FRACTURE ZONE, BEING DIVIDED INTO A SERIES OF MINOR LENSES ADJACENT TO NORTHEAST FISSURES. STRONG STRATIGRAPHIC CONTROL. LESS ABUNDANT FISSURE DEPOSITS WHICH ARE SHOOTS IN THE FISSURE PLANES
Deposit Discovery Year: 1880'S

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.

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