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Kentucky-Utah Group

Past Producer in Salt Lake county in Utah, United States with commodities Lead, Silver, Copper, Gold, Zinc, Bismuth
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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. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10014850
MRDS ID D011907
Record type Site
Current site name Kentucky-Utah Group
Alternate or previous names Woodlawn Mine, Big Cottonwood Coalition Group, Copper King, New Sensation, Mannahansett, Gardner Adit

Geographic coordinates

Geographic coordinates: -111.60939, 40.60688 (WGS84)
Elevation 2829
Relative position 6900 FT N 29 W FROM MT. MILLICENT

Site location context

Political divisions (FIPS codes)

Salt Lake(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)

Jordan(hydrologic unit)

Jordan(hydrologic accounting unit)

Great Salt Lake(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Uinta-Wasatch-Cache National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Utah Salt Lake

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 002S 003E 33 NE OF NE OF NE Utah

Comments on the location information

  • LOCATION GIVEN FOR CARD IS GARDNER ADIT PORTAL; UTM OF KENTUCKY-UTAH PORTAL IS 4497100N, 449100E; COPPER KING SHAFT AT 4495800N, 449100E; CLARK TUNNEL AT 4494700N, 448600E; NEW SENSATION TUNNEL AT 4494900N, 448800E; MANNAHANSETT TUNNEL AT 4494700N, 448900E. PROPERTIES WERE CONSOLIDATED IN 1928 TO FORM THE KENTUCKY-UTAH GROUP. PRIOR TO CONSOLIDATION THE INDIVIDUAL MINES INCLUDED THE WOODLAWN MINE, BIG COTTONWOOD COALITION, AND COPPER KING MINE. ; INFO FROM LAND.ST :1983

Commodities

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

Comments on the commodity information

  • HIGHLY VARIABLE ORES, CU-RICH, PB-RICH, AND ZN-RICH ORES ALL PRESENT

Materials information

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

Alteration

  • (Local) Tactite Along Intrusive Contacts, Minor Silicification And Bleaching Along Veins, Oxidation

Analytical data

Result GARDNER LEVEL ASSAY 4.5 OZ/TON AG
Result 0.20 OZ/TON AU
Result 4.9% CA

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Clayton Peak Stock;Intermediate Dikes
    Rock description Clayton Peak Stock;Intermediate Dikes
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Plutonic Rock > Porphyry > Lamprophyre
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Deseret Limestone;Gardison Limestone
    Rock description Deseret Limestone;Gardison Limestone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1) -111.60939, 40.60688
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Vinta-Cottonwood Arch, Sevier Overthrust Belt
Type of structure Local
Structure description Numerous Northeast Striking Shear Zones And Normal Faults, Grizzly Thrust

Ore body information

  • General form TABULAR
    Strike N 70 E
    Dip 60 NW
    Depth to top 0M
    Depth to bottom 548.64M
  • General form TABULAR
    Dip 60 NW
  • General form TABULAR
    Dip 60 NW

Controls for ore emplacement

  • Northeast Trending Fissures, Proximity To Dikes And Stock, Breccia Zones

Comments on the geologic information

  • MINERALIZATION OCCURS IN MAXFIELD LIMESTONE, GARDISON LIMESTONE, DESERT LIMESTONE, AND HUMBUG FORMATION

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1875
Year of first production 1904

Mining district

District name Big Cottonwood District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Solitude Ski Resort

Production statistics

  • Year 1923
    Period 1915-1923
    Accuracy Estimate
    Description Cp_Grade: ^.12% Pb, 27.3 Oz/Ton Ag, .043 Oz/Ton Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Gold Gold 1g/mt
    Major Ore Silver Silver 771g/mt
    Major Ore Lead Lead 12wt-pct

Comments on the production information

  • TOTAL PRODUCTION FOR GROUP PRIOR TO 1928 WAS ABOUT 30,000 DOLLARS. WOODLAWN MINE DURING PERIOD FROM 1915 TO 1923 PRODUCED 406 TONS OF 17.61 OZ AU, 11,065 OZ AG, 3965 LBS CU, 97,253 LBS PB, AND 21,141 LBS ZN.

Workings at the site

  • Type of workings Underground
    Length 4084.32M
    Overall depth 548.64M

Comments on the workings information

  • KENTUCKY-UTAH ADIT IS ABOUT 9000 FT LONG, WOODLAWN MINE WORKINGS TOTAL 4400 FT. NO MAJOR STOPES

Comments on development

  • WOODLAWN MINE PRODUCED & DEVELOPED FROM 1904 THROUGH LATE 1920'S. LATER DEVELOPMENT WAS THROUGH THE DEEP KENTUCKY-UTAH ADIT WITH LIMITED PRODUCTION.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Discovery Year: LATE 1800'S
Deposit MINERALIZATION APPEARS TO BE GENETICALLY RELATED TO INTRUSIVES. WORKINGS EXPLORED NUMEROUS NORTHEAST STRIKING FISSURE VEINS WITH MINOR ASSOCIATED REPLACEMENT IN LIMESTONE. MINOR CU-AU BEARING SKARN DEPOSITS FOUND DEEP BENEATH WOODLAWN MINE IN KENTUCKY-UTAH ADIT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-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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