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Daly West Mine

Past Producer in Summit county in Utah, United States with commodities Lead, Silver, Copper, Zinc, Gold
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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 10014901
MRDS ID D012001
Record type Site
Current site name Daly West Mine
Alternate or previous names Daly West Group, United Park City Mines, Park Utah Consolidated Mines
Related records 10251778

Geographic coordinates

Geographic coordinates: -111.51134, 40.61522 (WGS84)
Elevation 2553
Relative position 2600 FT N 7 E FROM USLM 7

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)

Upper 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 29 NE OF NE OF SE Utah

Comments on the location information

  • INFO FROM LAND.ST :1983

Commodities

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

Materials information

Materials Type of material
Anglesite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Tetrahedrite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation To A Depth Of 300 Ft

Analytical data

Result AVERAGE GRADE FOR DALY WEST AND JUDGE IS .054 OZ/TON AU, 1202 OZ/TON AG, 8.73 % PB, 4.71% ZN, .373% CU

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
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Weber Quartzite;Park City Formation
    Rock description Weber Quartzite;Park City Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Economic information

Geologic structures

Type of structure Regional
Structure description Uinta-Cottonwood Arch, Sevier Overthrust Belt, Park City Anticline
Type of structure Local
Structure description Northeast Striking Fault Zones

Ore body information

  • General form TABULAR, TABULAR
    Strike N 30 E TO N 80 E
    Dip 20 NW TO 80 NW
    Thickness 502.92M
    Length 914.4M
    Width 304.8M
    Depth to top 0M

Controls for ore emplacement

  • Northeast Striking Fissures, Favorable Horizons At Base Of Park City Formation Adjacent To Fissures

Comments on the geologic information

  • FISSURE DEPOSITS LOCATED ALONG FAULT CONTACT BETWEEN THE WEBER QUARTZITE AND THE PARK CITY FORMATION. BEDDING DIPS 20 DEGREES TO THE NORTHWEST

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1885
Year of first production 1891
Year of last production 1965

Mining district

District name Park City District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner United Park City Mines Co.

Comments on the production information

  • ERICKSON, 1968, REPORTS THE TOTAL OUTPUT FROM THE DALY WEST AND JUDGE MINES AS FOLLOWS-79051 OZ AU 51264289 OZ AG 744384966 LBS PB. 401616365 LBS ZN, AND 31831461 LBS CU FOR THE PERIOD FROM 1875 TO 1967

Workings at the site

  • Type of workings Underground
    Length 7620M
    Overall depth 502.92M

Comments on the workings information

  • THE DALY WEST SHAFT IS 1650 FT DEEP WITH LEVELS AT 900, 1200, AND 1400 FT. THE 900 FT LEVEL OF THE DALY WEST CONNECTS WITH THE LOWER WORKINGS OF THE QUINCY MINE. LOWER WORKINGS OF THE DALY WEST CONNECT WITH THE DALY AND DALY-JUDGE MINES TO THE EAST AND WEST. THE TOTAL LENGTH OF WORKINGS IS PROBABLY NEAR 25,000 FT

Comments on development

  • SYSTEMATIC EXPLORATION BEGAN IN 1891, BY THE END OF 1892 THE SHAFT WAS DOWN TO 1255 FT AND A CONNECTION WAS MADE WITH THE DALY MINE. PRODUCTION BETWEEN 1891 AND 1898 WAS INTERMITTENT. OUTPUT PEAKED IN 1903. PROPERTY INCLUDES THE FORMER IVANHOE, MORGAN, DOLBERG, QUINCY, AND AN INTEREST IN THE LITTLE BELL PROPERTY. IN 1920 WAS CONSOLIDATED WITH PARK UTAH CONSOLIDATED MINES AND IN 1953 WITH UNITED PARK CITY MINES CO.

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: AMER. INST. METALL. ENG., V.II, P. 1102

  • Production

    BOUTWELL, 1912, ERICKSON, 1968

General comments

Subject category Comment text
Deposit Discovery Year: 1880'S
Deposit BOTH BEDDED REPLACEMENT AND VEIN-TYPE ORE BODIES OCCUR. BEDDED DEPOSITS ARE STRATABOUND, TABULAR REPLACEMENT ZONES IN THE LOWER PARK CITY FORMATION, GENERALLY LYING WITHIN A FEW 10'S OF FEET FROM FISSURES, AND HAVING A THICKNESS OF 5 FT. THE MOST FAVORABLE REPLACEMENT HORIZON IS 40 FT ABOVE THE TOP OF THE WEBER QUARTZITE AND IS COMPRISED OF A PURE BLUE LIMESTONE. VEIN DEPOSITS ARE WELL DEVELOPED ALONG THE GREAT DALY-DALY WEST-ONTARIO FISSURE SYSTEM WHICH STRIKES ENE ACROSS THE PROPERTY.IN GENERAL THE VEIN DEPOSITS HAVE BEEN WORKED OVER A STRIKE LENGTH OF 3000 FT. AND DEPTH OF 650 FT. THE REPLACEMENT DEPOSITS HAVE BEEN WORKED OVER A VERTICAL DISTANCE OF 1000 FT AND HORIZONTAL DISTANCE OF 3000 FT

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

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