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  3. Mineral Resource Data System (MRDS)

Thorn Claims

Past Producer in Fremont county in Colorado, United States with commodities Uranium, Vanadium
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Links to other databases
  21. Bibliographic references
  22. Reporter information

Geologic information

Identification information

Deposit ID 10101792
MRDS ID D009337
Record type Site
Current site name Thorn Claims
Alternate or previous names Thome 1-14, Thome Claims, Thorn 9 and 10, Thorn Homestead Mine
Related records 10215635

Geographic coordinates

Geographic coordinates: -105.52197, 38.53529 (WGS84)
Elevation 2438
Location accuracy 250(meters)
Relative position 8 MILES N65W OF PARKDALE

Site location context

Political divisions (FIPS codes)

Fremont(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hall Gulch(quadrangle 1:24,000 scale)

Pikes Peak(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Arkansas Headwaters(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Geographic areas

Country State County
United States Colorado Fremont

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 017S 073W 26 NW OF NE OF SE OF SE Colorado

Comments on the location information

  • Location from Nelson-Moore and others (1978).

Commodities

Commodity Importance
Uranium Primary
Vanadium Critical Secondary

Materials information

Materials Type of material
Coffinite Ore
Uraninite Ore
Hematite Gangue
Limonite Gangue

Alteration

  • (Local) Oxidation; Alteration Of Feldspar To Clay

Mineral occurrence model information

Model code 204
USGS model code 30c
Deposit model name Sandstone U

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Wall Mountain Tuff Was Probable Principal Uranium Source
    Rock description Wall Mountain Tuff Was Probable Principal Uranium Source
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Tallahassee Creek Conglomerate
    Rock description Tallahassee Creek Conglomerate
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff

Economic information

Geologic structures

Type of structure Regional
Structure description Thirty Nine Mile Volcanic Field, Currant Creek Basin
Type of structure Local
Structure description Echo Park Graben, Paleovalleys

Ore body information

  • General form TABULAR, PODS
    Depth to top 21.34M

Controls for ore emplacement

  • Deposition Controlled By Ground Water Flow Conditions And Carbonaceous Material With Associated Pyrite. Flow Was Impeded By The Fault On The Southern End Of The Echo Park Graben.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1960

Mining district

District name Tallahassee Creek

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Atlas Minerals
    Home office Denver Colorado
    Year 1975

Production statistics

  • Year 1965
    Period 1960-1965
    Material U ORE
    Accuracy Accurate
    Description Cp_Grade: ^0.27% U308
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    U3O8 Ore Uranium Uranium 0wt-pct

Comments on the production information

  • ITEM 23 WAS FROM 1980 TONS OF ORE. NEVADA CREEK PLACER INCLUDING CHICKEN, CHIMNEY, DEER, AND WASSON CREEK PRODUCED ABOUT $300000 PRE-1900-1947.

Comments on the workings information

  • ADITS, PITS, PLACER

Comments on development

  • MINES: BLACKFOOT, CORBIN, HIGGINS, HOBBY HORSE, PLUTARC; HOPKINS, NEVADA CREEK, KILBURN, C. D. HURD PLACERS; NEW PROGRESS, MCCACRAN, ROSELLE; BLACKBIRD, BLUEBIRD, GROUSE, MAGPIE, AND MEADOW LARK PLACERS

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-82 Collins, Donna B. Colorado Geological Survey
Updater 14-JUN-04 Keller, John W. Colorado Geological Survey

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Atlas Minerals — dissolved ~1998
    Atlas Corporation filed Chapter 11 in 1998 amid uranium-mine reclamation liabilities. Mining assets were dispersed in bankruptcy.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.