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East-West Pegmatite

Occurrence in Park county in Colorado, United States with commodities REE, Beryllium, Thorium, Niobium (Columbium)
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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. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10010858
MRDS ID D004878
Record type Site
Current site name East-West Pegmatite
Alternate or previous names West-West Pegmatite

Geographic coordinates

Geographic coordinates: -105.62086, 38.79806 (WGS84)
Elevation 2926

Site location context

Political divisions (FIPS codes)

Park(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Thirtynine Mile Mountain(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 Park

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 14S 74W 25 CENTER OF S2 Colorado

Commodities

Commodity Importance
REE Critical Primary
Beryllium Critical Primary
Thorium Primary
Niobium (Columbium) Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Biotite Gneiss
    Rock description Biotite Gneiss
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -105.62086, 38.79806
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range, Thirtynine Mile Volcanic Field
Type of structure Local
Structure description Currant Creek Fault Zone And Related Faults

Controls for ore emplacement

  • Fractures, Pegmatite

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1951
Discoverer George West, Guffey (1957)
Year of first production 1951

Mining district

District name Guffey Area

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner George West
    Home office Guffey, Co.
    First year 1957

Comments on the production information

  • PRODUCED FELDSPAR (MICROCLINE?) AND POSSIBLY MUSCOVITE DURING 1950'S

Reference information

Bibliographic references

  • Deposit

    BEVER, J.E. 1953 NOTES ON SOME MINERAL OCCURRENCES IN THE GUFFEY REGION, COLORADO: AMERICAN MINERALOGIST V. 38 P. 138-141.

  • Deposit

    HEINRICH, E.W. AND BEVER, J.E., 1957, RADIOACTIVE MINERAL OCCURRENCES IN THE GUFFEY AREA, PARK AND FREMONT COUNTIES, COLORADO: COLORADO SCHOOL OF MINES QUARTERLY, V. 52, NO. 4, P. 33.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1980 Foord, Suzann C U.S. Geological Survey
Updater 01-JUN-1982 Collins, Donna B. U.S. 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.