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Burroughs Feldspar Mine

Past Producer in Jefferson county in Colorado, United States with commodities Feldspar, Mica, Beryllium, Niobium (Columbium), Tantalum, Bismuth, Lithium, REE, Uranium, Thorium
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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. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  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 10013739
MRDS ID D010198
Record type Site
Current site name Burroughs Feldspar Mine
Alternate or previous names Sunrise Peak Mine, Traut-Rudin-Anderson Pegmatite

Geographic coordinates

Geographic coordinates: -105.32336, 39.68138 (WGS84)
Elevation 2271
Relative position 6.5 MILES S 36 W FROM GOLDEN

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Evergreen(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper South Platte(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 004S 071W 22 SW OF SE Colorado

Comments on the location information

  • BETWEEN SWEDE GULCH AND KERR GULCH 2.3 MILES SE OF BERGEN PARK. HANLEY AND OTHERS (1950) GIVE LOCATION IN NE SEC. 27, BUT SEC. 22 IS PROBABLY LOCATION ; INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Feldspar Primary
Mica Primary
Beryllium Critical Primary
Niobium (Columbium) Critical Secondary
Tantalum Critical Secondary
Bismuth Critical Tertiary
Lithium Critical Tertiary
REE Critical Tertiary
Uranium Tertiary
Thorium Tertiary

Materials information

Materials Type of material
Allanite Ore
Beryl Ore
Columbite Ore
Euxenite Ore
Gadolinite Ore
Microcline Ore
Monazite Ore
Muscovite Ore
Pyrochlore Ore
Tantalite Ore
Xenotime Ore
Biotite Gangue
Sericite Gangue
Topaz Gangue
Triphylite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite
    Rock description Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Idaho Springs Formation---Interlayered Hornblende Gneiss, Calc-Silicate Gneiss, And Amphibolite
    Rock description Idaho Springs Formation---Interlayered Hornblende Gneiss, Calc-Silicate Gneiss, And Amphibolite

Nearby scientific data

(1) -105.32336, 39.68138
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift, Denver Basin
Type of structure Local
Structure description Floyd Hill Fault Zone

Ore body information

  • General form TABULAR
    Thickness 18.29M
    Length 54.86M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Year of first production 1942
Year of last production 1944

Mining district

District name Clear Creek Pegmatite Province

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner L. T. Burroughs
    Home office Golden, Co.
    First year 1943

Comments on the production information

  • PRESUMED CUMULATIVE PRODUCTION FROM USBM (?). FIGURE FOR FLD INCLUDES 6000 ST IN 1942-44.

Workings at the site

  • Type of workings Surface
    Length 30.48M
    Overall length 30.48M
    Overall width 9.14M

Comments on the workings information

  • OPEN CUT 35 FT DEEP

Comments on development

  • MINE PRODUCED 6000 TONS FELDSPAR IN 1942-44. USBM (?) LISTS PRESUMABLY CUMULATIVE PRODUCTION

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ZONED PEGMATITE TRENDING N 65 E, VERTICAL. WALL ZONE IS QUARTZ-MICROCLINE-BIOTITE; CORE IS QUARTZ-MICROCLINE

Reporter information

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

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.