Charlene Prospect

Past Producer in Montezuma county in Colorado, United States with commodities Gold, Silver
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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10014154
MRDS ID D010809
MAS/MILS ID 0080830023
Record type Site
Current site name Charlene Prospect
Alternate or previous names Unpatented Claim: Charlene, Charlene, Twin Canyon, Twin Canyon claim, Twin Canyons 1-8 claims, Charlene Tunnel

Comments on the site names

  • Neubert and others, 1992 (MLA 2-92) p. 87 clears up the name mystery:

    "The Charlene Mine (recently renamed the Twin Canyon)..." However, the name on the maps and in the literature is Charlene so that is the name used in this database as the current name.

Geographic coordinates

Geographic coordinates: -108.1479, 37.37336 (WGS84)
Elevation 2877
Location accuracy 100(meters)
Relative position 16.1 MILES N 67 W FROM DURANGO

Site location context

Political divisions (FIPS codes)

Montezuma(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Thompson Park(quadrangle 1:24,000 scale)

Cortez(quadrangle 1:100,000 scale)

Cortez(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle San Juan(hydrologic unit)

Upper San Juan(hydrologic accounting unit)

San Juan(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

San Juan National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Montezuma

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 036N 012W 14 S2 Colorado

Comments on the location information

  • (LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). CLAIM LIES IN TWIN CANYON BASIN SOUTH OF EAST MANCOS RIVER AND NORTH OF CAVINESS MOUNTAIN, 4.95 MILES SW OF LA PLATA TOWNSITE (UNSURVEYED SECTION). ; INFO FROM LAND.ST :1974

Commodities

Commodity Importance
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Gold Ore

Analytical data

Result REPRESENTATIVE VEIN SAMPLE CONTAINED 0.30 OZ/TON AU

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Junction Creek Sandstone
    Rock description Junction Creek Sandstone
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -108.1479, 37.37336

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Uplift, Four Corners Platform
Type of structure Local
Structure description La Plata Dome, Parrott Fault System

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1990

Mining district

District name La Plata(California) District

Land status

Ownership category National Forest
Area name San Juan N. F.

Ownership information

  • Type Unknown
    Owner Charles Hepworth
    Year 1949

Comments on the production information

  • Record 10191337 (deleted) suggests that the mine may have been operational in 1990, 41 years after PP-219 was published in 1949. This would elevate the Development Status to Past Producer. Record 10239262 (record deleted) seems to verify this:

    "Fine gold disseminated in Junction Ck. Sandstone. Area was drilled in 1988. Small, unrecorded production in 1990.

Workings at the site

  • Type of workings Underground
    Length 12.19M

Comments on the workings information

  • ONE TUNNEL HEADING GENERALLY N 15 E

Reference information

Bibliographic references

  • Ownership

    OWN:OP Wesley F. Potts, Rt. 2, Mancos.

  • Deposit

    ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 73-76, 101

  • Deposit

    Neubert, J.T., and others, 1992, Mineral Appraisal of the San Juan National Forest, Colorado: USBM MLA 2-92, p. 87-88, fig. 25, p. 84, fig. 28, p. 88.

  • Deposit

    CBM Annual Report 1971

  • Deposit

    Mineral Property File

General comments

Subject category Comment text
Deposit PROSPECT LIES BELOW TOP OF JUNCTION CREEK SANDSTONE, WHICH LOCALLY TRENDS N 75 W, 18 SW. SEVERAL MINOR SLIPS CONTAINING LITTLE GOUGE TREND N 50 TO 70 W, 40 TO 45 SW. ALTHOUGH PROSPECT HAS PRODUCED NO ORE, IT ILLUSTRATES UNUSUAL MODE OF AU OCCURRENCE IN DISTRICT. ROCK IS NOT VISIBLY MINERALIZED BUT SOFT, FRIABLE SANDSTONE YIELDS FREE AU WHEN PANNED.
Deposit Changed district name from California (La Plata) to La Plata (California) to eliminate confusion with other California districts.
Deposit From 10191337 (record deleted):

"Fine gold disseminated in Junction Ck. Sandstone. BP Minerals drilled this area in 1988, and Wes Potts operated the mine intermittently in 1990."

This same record includes Twin Canyon claim as a previous name. Not clear if Twin Canyon is part of Charlene or a separate site.
Deposit From 10239262 (record deleted):

"Fine gold disseminated in Junction Ck. Sandstone. Area was drilled in 1988. Small, unrecorded production in 1990.
Deposit Twin Canyon claim, Twin Canyons 1-8 claims, and Charlene tunnel are all part of this site.

Add 10191227 and 10090680 to this record and delete those duplicates.
Deposit Twin Canyon and Twin Canyons 1-8 list Silver as an additional commodity. If present, it is minor or trace.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-83 Schwochow, Stephen D. Colorado Geological Survey
Reporter 28-MAY-92 Intermountain Field Operations Center U.S. Bureau of Mines
Reporter 26-MAY-92 Intermountain Field Operations Center U.S. Bureau of Mines
Editor 25-JUN-08 Wilson, Anna B. U.S. Geological Survey
Reporter 01-APR-77 Hassler, J. William U.S. Geological Survey
Reporter 27-MAY-92 Intermountain Field Operations Center U.S. Bureau of Mines

Beyond USGS

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

External references

Authoritative Colorado resources

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