Leonora Mine

Past Producer in Beaver county in Utah, United States with commodity Lead
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 10101544
MRDS ID D004695
Record type Site
Current site name Leonora Mine
Alternate or previous names Admiral Dewey, Admiral Group

Geographic coordinates

Geographic coordinates: -113.14386, 38.36329 (WGS84)
Elevation 1932
Relative position 7 MILES SW OF MILFORD

Site location context

Political divisions (FIPS codes)

Beaver(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Picacho Peak(quadrangle 1:24,000 scale)

Wah Wah Mountains South(quadrangle 1:100,000 scale)

Richfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaver Bottoms-Upper Beaver(hydrologic unit)

Escalante Desert-Sevier Lake(hydrologic accounting unit)

Escalante Desert-Sevier Lake(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management UT)

Bureau of Land Management UT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Utah Beaver

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 028S 012W 24 Utah

Comments on the location information

  • SECTION SUBDIVISIONS NW 1/4, NE 1/4, NE 1/4, SEC 24.

Commodities

Commodity Importance
Lead Primary

Materials information

Materials Type of material
Galena Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Fe Stained, Bleached

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Tailsman Quartzite;Kaibab Ls;Moenkopi Formation
    Rock description Tailsman Quartzite;Kaibab Ls;Moenkopi Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -113.14386, 38.36329

Economic information

Geologic structures

Type of structure Regional
Structure description Basin & Range Colorado Plateau Transition
Type of structure Local
Structure description Star Range

Ore body information

  • General form TABULAR
    Strike N 50 DEG W
    Dip 43 DEG NE
    Thickness 3.05M
    Depth to top 3.05M
    Depth to bottom 60.96M

Controls for ore emplacement

  • N-S Striking Fissures

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1895
Year of first production 1900

Mining district

District name Star

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Richard Roberts

Workings at the site

  • Type of workings Underground
    Overall depth 60.96M

Comments on the workings information

  • WORKINGS CONSIST OF SEVERAL CAVED ADITS & SHAFTS, MAIN SHAFT 200 FEET DEEP

Comments on development

  • THE ADMIRAL DEWEY (ADMIRAL) GROUP ALTHOUGH ORIGINALLY SEPARATE FROM THE LEONORA GROUP IS BEING CONSIDERED AS ONE. THE ADMIRAL GROUP ADJOINS THE LEONORA ON THE SOUTH.

Reference information

Bibliographic references

  • Deposit

    ABOU-ZIED, S., AND WHELAN, J.A., 1973, GEOLOGY AND MINERALOGY OF THE MILFORD FLAT QUADRANGLE, STAR DIST, BEAVER CO. UT: UT GEOL & MIN SURVEY SPEC. STUDY 46

  • Deposit

    BAER, J.L., 1962, GEOLOGY OF THE STAR RANGE, BEAVER COUNTY, UTAH: B.Y.U. GEOLOGY STUDIES V.9, PT. 2, P. 29-52.

  • Deposit

    BAER, J.L., 1973, SUMMARY OF THE STRATAGRAPHY AND STRUCTURE OF THE STAR RANGE, BEAVER COUNTY, UTAH: UTAH GEOL. ASSOC. PUBL. NO.3 P. 6

  • Deposit

    PERRY, L.I., 1976, LEAD AND ZINC IN UTAH: UTAH GEOL. & MIN. SURVEY OPEN FILE REPORT. NO. 22

  • Deposit

    1913 GEOLMAP BUTLER, B.S., USGS PP #80

  • Deposit

    1920 RECON BUTLER, B.S., USGS PP #111

  • Deposit

    1962 GEOLMAP BAER, J.L., B.Y.U. GEOL. STUDIES V.9

  • Deposit

    1963 COMPILE HEYL, A.V., USGS BULL 1135-B

  • Deposit

    1973 COMPILE UGA PUBL. #3

  • Deposit

    1973 GEOLMAP UGMS SPECIAL STUDIES #46

  • Deposit

    BAETCKE, G.B., 1969, STRATIGRAPHY OF THE STAR RANGE AND RECONNAISSANCE STUDY OF THREE SELECTED MINES: UNIV. OF UT. P. HD. THESIS.

  • Production

    EVERTS, M.L., 1979, GEOLOGIST.

General comments

Subject category Comment text
Deposit Discovery Year: 1890'S
Deposit IN 1909 BUTLER REPORTED THAT SMALL AMOUNTS OF ORE HAD BEEN SHIPPED, AND THAT A TUNNEL WAS BEING DRIVEN TO INTERSECT A SUPPOSED ORE BODY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1979 Everts, Michael L. Bureau of Land Management
Updater 01-JUL-1985 Shubat, Michael A. U.S. Geological Survey

Beyond USGS

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

External references