1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Cotopaxi Pegmatite Area

Occurrence in Fremont county in Colorado, United States with commodities Niobium (Columbium), Tantalum, REE
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10009125
MRDS ID D001805
Record type District
Current site name Cotopaxi Pegmatite Area

Geographic coordinates

Geographic coordinates: -105.66725, 38.40001 (WGS84)

Site location context

Political divisions (FIPS codes)

Fremont(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Arkansas Mountain(quadrangle 1:24,000 scale)

Canon City(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)

Federal lands

Bureau of Land Management(Bureau of Land Management CO)

Bureau of Land Management CO BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Colorado Fremont

Comments on the location information

  • This is a general region of pegmatites, mostly feldspar, quartz, and mica, with some pegmatites having REE, niobium, and tantalum minerals.

Commodities

Commodity Importance
Niobium (Columbium) Critical Primary
Tantalum Critical Primary
REE Critical Primary

Materials information

Materials Type of material
Allanite Ore
Euxenite Ore
Gadolinite Ore
Xenotime Ore

Nearby scientific data

(1) -105.66725, 38.40001
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Cotopaxi Pegmatite Area

Reference information

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1975 Parker, Raymond L. U.S. Geological Survey
Updater 09-JUN-2004 Keller, John W. 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.