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Upper South Mine

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

Geologic information

Identification information

Deposit ID 10101827
MRDS ID D009872
MAS/MILS ID 80430315
Record type Site
Current site name Upper South Mine
Alternate or previous names Colorado Feldspar Company Mine, South
Related records 10215272

Comments on the site identification

  • Upper South was formerly just the South. (See PP-227, p. 43).

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -105.486, 38.68391 (WGS84)
Elevation 2591
Location accuracy 10(meters)
Relative position 4.8 MILES S 65 E OF GUFFEY. Prospect symbol shown but not labeled on topo. Ground disturbance visible on satellite imagery.

Site location context

Political divisions (FIPS codes)

Fremont(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cover 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 Fremont

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 016S 072W 6 NW OF SE Colorado

Comments on the location information

  • ABOUT 200 FT ABOVE LOWER SOUTH MINE, EAST OF MAC GULCH ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Mica Primary
Feldspar Tertiary
Beryllium Critical Tertiary

Materials information

Materials Type of material
Microcline Ore
Muscovite Ore
Biotite Gangue

Mineral occurrence model information

Model code 32
USGS model code 13
Deposit model name Pegmatites

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Quartz Diorite Of Boulder Creek Age
    Rock description Quartz Diorite Of Boulder Creek Age
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Paleoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

Main Entrance (1) -105.486, 38.68391
ListMap

Economic information

Geologic structures

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

Ore body information

  • General form LENS SHAPED
    Strike N 04 E
    Dip EAST CONTACT DIPS STEEPLY EAST; WEST CONTACT DIPS SHALLOWLY TO EAST
    Thickness 4.57M
    Length 45.72M
    Width 9.14M
  • General form LENS SHAPED
    Strike N 04 E
    Dip EAST CONTACT DIPS STEEPLY EAST; WEST CONTACT DIPS SHALLOWLY TO EAST

Comments on the ore body information

  • PEGMATITE. MAGMATIC DIFFERENTIATION.

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1950
Year of first production 1950

Mining district

District name Micanite District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Unknown
    Owner Colorado Feldspar Co.
    Year 1950
  • Type Unknown
    Owner United States Mica Co.
    Year 1923
    First year 1902

Comments on the reserve resource information

  • RESERVES ESTIMATED AT ONLY A FEW TENS OF TONS OF RECOVERABLE SCRAP MICA AND MICROCLINE (1950)

Workings at the site

  • Type of workings Unknown
    Area 0.017HA
    Length 30.48M
    Overall depth 0M
    Overall length 19.2M
    Overall width 9.14M

Comments on the workings information

  • OPEN CUT 63X20X25 FT DEEP; 3 DRIFTS EACH LESS THAN 10 FT LONG; SHALLOW PIT 28X20 FT

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit POORLY ZONED WITH ILL-DEFINED QUARTZ-MICROCLINE CORE, WALL ZONE OF QUARTZ-MICROCLINE-MUSCOVITE-PLAGIOCLASE-BIOTITE PEGMATITE
Deposit SMALL PEGMATITE 200 FT EAST EXPLORED BY GLORY HOLE, HAULAGE TUNNEL, SEVERAL SHORT DRIFTS, 2 SHALLOW INCLINED SHAFTS; PEGMATITE MEASURES 75X30 FT, TRENDS N 67 E, DIPS S 75 E ON BOTH CONTACTS; HAS WALL ZONE WITH QUARTZ-MICROCLINE CORE

Reporter information

Type Date Name Affiliation Comment
Reporter 1982-12-01 Collins, Donna B. Colorado Geological Survey
Editor 2012-10-03 Wilson, Anna B U.S. Geological Survey merged and deleted duplicate record 10215272 and corrected location coordinates to match X on topo.
Reporter 1993-10-12 Martin U.S. Bureau of Mines MAS 0080430315

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.