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  3. Mineral Resource Data System (MRDS)

Brown Spar

Past Producer in Boulder county in Colorado, United States with commodity Fluorine-Fluorite
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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. Land status
  10. Production statistics
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10141511
MRDS ID DC03091
MAS/MILS ID 0080130149
Record type Site
Current site name Brown Spar
Alternate or previous names Browns Spar, Brownspar
Related records 10108205

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -105.39389, 40.12326 (WGS84)
Elevation 2243
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gold Hill(quadrangle 1:24,000 scale)

Estes Park(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

St. Vrain(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Arapaho and Roosevelt National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Boulder

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary

Materials information

Materials Type of material
Fluorite Ore
Ankerite Ore
Galena Trace
Pyrite Trace

Nearby scientific data

Main Entrance (1) -105.39389, 40.12326
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Non-metallic
Significant No

Land status

Ownership category Private

Production statistics

  • Year 1943
    Material ore
    Ore mined 6863.81mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Fluorine-Fluorite Fluorine 62

Reference information

Bibliographic references

  • Deposit

    MINE MAP REPO # 402332, 404634, 405048, 405051, 405053, 40

  • Deposit

    OWN/ EMPIRE MINING & ENGR CO. REF. VANDERWILT "MINERAL RES O

  • Deposit

    REF USGS PROF PAPER 223 PLATE 3

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-1983 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines

Beyond USGS

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

External references

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.