Firefly-Pigmy

Past Producer in San Juan county in Utah, United States with commodities Uranium, Vanadium
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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10276366
MAS/MILS ID 0490370429
Record type Site
Current site name Firefly-Pigmy

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -109.09879, 38.33189 (WGS84)
Elevation 2048
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

San Juan(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ray Mesa(quadrangle 1:24,000 scale)

La Sal(quadrangle 1:100,000 scale)

Moab(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Dolores(hydrologic unit)

Upper Colorado-Dolores(hydrologic accounting unit)

Upper Colorado-Dolores(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Utah San Juan

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 028 S 026 E 30 SESESW Utah

Commodities

Commodity Importance
Uranium Primary
Vanadium Critical Primary

Materials information

Materials Type of material
Carnotite Unknown
Uraninite Unknown

Nearby scientific data

Main Entrance (1) Morrison Formation (Brushy Basin and Salt Wash Members)

Economic information

Ore body information

  • Area 0.1HA
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin OTHER
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Total Surface Area (HA) .1
    Date of Last Modification 800117

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1952

Mining district

District name Lasal

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Washburn Lark
    Home office Colorado
    Year 1974

Workings at the site

  • Type of workings Underground
    Length 4573M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method ROOM AND PILLAR 10-34
    Swell Factor .73
    Hardness of Rock SOFT NONPLASTIC WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. TIMBER
    Avg. Length of Adits (m) 366
    1st Condition of Workings OPEN
    Capacity Units MT COMMOD/DAY
    Units of Production $/MT COMMOD
    Year of Information 1973

Reference information

Bibliographic references

  • Deposit

    CARTER WC GUALTIERI JL 1965 GEOLOGY AND U-V DEPOSITS LA SAL

  • Deposit

    QUAD SAN JUAN CO UTAH USGS PP508

  • Deposit

    REVISED BY MILS

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Utah Geological And Mineral Survey Utah Geological and Mineral Survey

Beyond USGS

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