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  3. Mineral Resource Data System (MRDS)

Sewell Ranch

Prospect in Custer county in Colorado, United States with commodities Thorium, REE
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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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. Reporter information

Geologic information

Identification information

Deposit ID 10012580
MRDS ID D008266
Record type Site
Current site name Sewell Ranch
Related records 10264080

Geographic coordinates

Point of reference Approximate
Geographic coordinates: -105.21529, 38.16807 (WGS84)
Elevation 2719
Location accuracy 50(meters)
Relative position 6 MILES N 60 E FROM QUERIDA

Site location context

Political divisions (FIPS codes)

Custer(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hardscrabble Mountain(quadrangle 1:24,000 scale)

Canon City(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Arkansas(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Geographic areas

Country State County
United States Colorado Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 022S 070W 04 NW OF NW OF SW Colorado

Comments on the location information

  • ALONG COLORADO 96 SW OF HARDSCRABBLE MTN ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Thorium Primary
REE Critical Primary

Materials information

Materials Type of material
Thorite Ore
Barite Gangue
Calcite Gangue
Galena Gangue
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Some Alteration

Analytical data

Result .007 TO .11% EQUIV. U308, : 001 TO .002% U308, .03 TO .60% EQUIV. TH02,

Mineral occurrence model information

Model code 30
USGS model code 11d
Deposit model name Thorium-rare-earth veins

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Syenite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Alaskitic Granite Gneiss And Hornblende Gneiss
    Rock description Alaskitic Granite Gneiss And Hornblende Gneiss

Nearby scientific data

Approximate (1) -105.21529, 38.16807
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Wet Mountains

Ore body information

  • General form TABULAR
    Strike N 45 W (VEIN)
    Dip 80 NE (VEIN)
    Thickness 12.19M
    Length 304.8M
    Width 3.66M

Controls for ore emplacement

  • Mineralized Vein, Strongly Sheared;

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1952

Mining district

District name Wet Mountains Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Lewis C. Mundy, 501 So. Locust St., Pueblo, Co.; Eugene Acheson, 702 Wilson Ave., Pueblo, Co.
    First year 1952
  • Type Owner
    Owner George F. And Claude A. Sewell
    First year 1952

Workings at the site

  • Type of workings Surface/Underground
    Length 36.58M
    Overall depth 12.19M

Comments on the workings information

  • TWO-40-FT ADITS, ON E 40-FT SHAFT, SEVERAL PROSPECT PITS

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-81 Collins, Donna B. 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.