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Carpenter Mine

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

Geologic information

Identification information

Deposit ID 10014244
MRDS ID D010929
Record type Site
Current site name Carpenter Mine
Alternate or previous names Alchemist Mine, Polaris Mine, Rare Metals of Colorado Mine, Patented Claims: Alchemist Tunnel No. 1, MS 19293, Planet No. 7, MS 19296a, Planet Mill Site, MS 19296b, Venus, MS 19366a, Jupiter, MS 19366a, Polaris Mill Site, MS 19366b, Rare Metals, MS 19481, Alchemist Tunnel No. 1, MS 19556, Imperial, MS 19563, Planet No. 5, MS 19565, Planet No. 4, MS 19623, Lebanon, MS 19625, Polaris Tunnel No. 2, MS 19626, Polaris Tunnel No. 1, MS 19644, Polaris, MS 19645, Alchemist Tunnel No. 3, MS 19663, Alchemist Tunnel No. 2, MS 19666, Planet No. 3, MS 19699
Related records 10167133

Geographic coordinates

Geographic coordinates: -107.97732, 37.94333 (WGS84)
Elevation 2582
Relative position 8.9 MILES N 89 W FROM TELLURIDE

Site location context

Political divisions (FIPS codes)

San Miguel(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gray Head(quadrangle 1:24,000 scale)

Silverton(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Miguel(hydrologic unit)

Upper Colorado-Dolores(hydrologic accounting unit)

Upper Colorado-Dolores(hydrologic subregion)

Upper Colorado(hydrologic region)

Geographic areas

Country State County
United States Colorado San Miguel

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 043N;042N 010W;010W 33;04 NW (33); S2 (33); NW OF NE (04) Colorado

Comments on the location information

  • CLAIMS COVER MINERALIZED BED ON BOTH SIDES OF BIG BEAR CREEK 1.3 TO 2 MILES SOUTH OF VANADIUM (CONFLUENCE OF BIG BEAR CREEK AND SAN MIGUEL RIVER), BUT PRINCIPAL WORKINGS LIE ON WEST SIDE OF CREEK IN SW SEC. 33. ELEV AND LAT-LONG GIVEN ARE FOR PROBABLE PORTAL OF CARPENTER TUNNEL (PROJECTED NE NE SW SEC. 33). ; INFO FROM LAND.ST :1975

Commodities

Commodity Importance
Vanadium Critical Primary
Uranium Tertiary

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Rhyolite
    Rock description Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Entrada Sandstone
    Rock description Entrada Sandstone

Nearby scientific data

(1) -107.97732, 37.94333
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Paradox Basin, Uncompahgre Uplift, San Juan Volcanic Field, San Miguel Mtns
Type of structure Local
Structure description Placerville Anticline, Frazier Fault, Ross Graben

Ore body information

  • Thickness 1.52M

Controls for ore emplacement

  • Permeable Sandstone Underlying Pony Express Limestone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1917
Year of last production 1944

Mining district

District name Lower San Miguel District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner U.S. Vanadium Corp.
    Home office Grand Junction, Co.
    First year 1944
  • Type Owner
    Owner Rare Metals Of Colorado, Inc.
    Home office New York City, N.Y.
    First year 1944

Production statistics

  • Year 1920
    Period 1919-1920
    Material ORE V EST
    Description Cp_Grade: ^Average 3% V205
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major V2O5 Ore Vanadium Vanadium 3wt-pct
  • Year 1971
    Period -1971
    Material ORE V U ACC
    Description Cp_Grade: ^3.15% V205, 0.13% U308
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace U3O8 Ore Uranium Uranium 0wt-pct
    Major V2O5 Ore Vanadium Vanadium 3wt-pct

Comments on the production information

  • PARTIAL PRODUCTION RECORD. ANNUAL TOTALS UNAVAILABLE FOR YEARS UP TO 1920, BUT FISCHER AND OTHERS ESTIMATE A CUMULATIVE TOTAL OF ABOUT 2000 TONS ORE. 1944 ANNUAL FIGURE FROM CDM RECORDS. CUMULATIVE FIGURES THROUGH 1971 ARE FROM NELSON-MOORE AND OTHERS AND CREDITED TO ALCHEMIST NO. 1.

Comments on the workings information

  • MINE DEVELOPED BY AT LEAST TWO TUNNELS DRIVEN GENERALLY WEST, WITH ABOUT 4000 FT OF DRIFTS AND SOME STOPES. CARPENTER TUNNEL DRIVEN GENERALLY WEST FOR 1000 FT AS CROSSCUT TO OLDER WORKINGS.

Comments on development

  • CLAIMS WERE SURVEYED IN 1912-1916 BY RARE METALS MINING AND MILLING CO. AND LEASED TO COLORADO VANADIUM CORP IN 1919-1920, DURING WHICH TIME ABOUT 2000 TONS ORE WERE MINED. FISCHER AND OTHERS STATE MINE WAS PROSPECTED BY METALS RESERVE CO. IN 1943-1944, BUT CDM RECORDS CITE ONLY SOME PRODUCTION BY U.S. VANADIUM CORP. IN 1944.

Reference information

Bibliographic references

  • Deposit

    FISCHER, R.P., AND OTHERS, 1947, VANADIUM DEPOSITS NEAR PLACERVILLE, SAN MIGUEL COUNTY, COLORADO: COLORADO SCI. SOC. PROC., V. 15, NO. 3, P. 117-146.

  • Deposit

    BUSH, A.L., AND OTHERS, 1961, PRELIMINARY GEOLOGIC MAP OF THE GRAY HEAD QUADRANGLE, SAN MIGUEL COUNTY, COLORADO: USGS MAP MF-176.

  • Deposit

    NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P.404.

  • Deposit

    COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.

  • Deposit

    BLM MINERAL SURVEYS MS 19293, 19296A&B, 19366A&B, 19481, 19556, 19563, 19565, 19623, 19625, 19626, 19644, 19645, 19663, 19666, 19699

  • Production

    FISHER AND OTHERS, 1947, P. 133; COLORADO DIV. MINES ANNUAL OPERATOR REPT.; NELSON-MOORE AND OTHERS, 1978, P.404.

General comments

Subject category Comment text
Deposit BEDS DIP GENTLY NE AND EAST OFF CREST AND NE FLANK OF PLACERVILLE ANTICLINE. RHYOLITE SILL INTRUDES DAKOTA SANDSTONE NEAR TOP OF MESA ABOVE MINE AREA. DEPOSIT LIES NEAR INNER (NE) BOUNDARY OF MINERALIZED BELT NEAR ITS SE END. MOST PAST STOPING CONFINED TO SEVERAL ORE BODIES ALINED TOWARD NW. AS ORE VARIES ABRUPTLY IN THICKNESS AND GRADE, ORE BODIES ARE POORLY DEFINED AND IRREGULAR IN PLAN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1983 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

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.