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  3. Mineral Resource Data System (MRDS)

West Ranch Deposit

Occurrence in Park county in Colorado, United States with commodity Tungsten
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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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10094545
MRDS ID D009192
Record type Site
Current site name West Ranch Deposit
Alternate or previous names West Deposit

Geographic coordinates

Geographic coordinates: -105.52697, 38.73556 (WGS84)
Elevation 2682
Relative position 1.0 MILE S 10 W FROM GUFFEY

Site location context

Political divisions (FIPS codes)

Park(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Thirtyone 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 015S 073W 23 S2 OF NE Colorado

Comments on the location information

  • ONE MILE SOUTH OF GUFFEY BY ROAD AND 0.25 MILES EAST OF THE JUNCTION OF COLORADO HWY 9 AND THE GUFFEY ROAD ; INFO FROM LAND.ST :1976; 1:24000 QUADRANGLE MAP IS A 1982 EDITION

Commodities

Commodity Importance
Tungsten Critical Primary

Comments on the commodity information

  • SCHEELITE OCCURS AS SUBHEDRAL TO EUHEDRAL CRYSTALS TO 0.8 INCHES ON AN EDGE, AND AS GRAINS, FLAKES, COATINGS. THE LARGER CRYSTALS FLUORESCE BLUE-WHITE IN THE CENTERS. MILKY WHITE CRYSTALS IN ORDINARY LIGHT. NARROW MARGINS FLUORESCE YELLOW.

Materials information

Materials Type of material
Scheelite Ore
Actinolite Gangue
Calcite Gangue
Chlorite Gangue
Epidote Gangue
Garnet Gangue
Grossularite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Boulder, Creek Granite Or Granodiorite
    Rock description Boulder, Creek Granite Or Granodiorite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Biotite Gneiss, Migmatitic Gneiss
    Rock description Biotite Gneiss, Migmatitic Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Skarn (Tactite)

Nearby scientific data

(1) -105.52697, 38.73556
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Thirtyone Mile Mountain Volcanic Center, Front Range, Guffey Volcanic Center
Type of structure Local
Structure description Currant Creek Fault And Related Nw-Trending Faults; Ilse Fault

Ore body information

  • General form LENSOID, TABULAR, POD-LIKE
    Strike NW (FOLIATION)
    Dip NEARLY VERTICAL

Controls for ore emplacement

  • Wall Rock Control

Comments on the geologic information

  • LIME-SILICATE BEDS FOLLOW SCHISTOSITY; THE HOST SKARN IS "GIANT-GRAINED"

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Guffey District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner G. D. West

Comments on the workings information

  • SHALLOW TRENCHES

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 Collins, Donna B. 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.