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  3. Mineral Resource Data System (MRDS)

Hyland Pit

Occurrence in Weld county in Colorado, United States with commodity Uranium
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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. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  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 10013018
MRDS ID D009077
Record type Site
Current site name Hyland Pit

Geographic coordinates

Geographic coordinates: -104.62001, 40.71054 (WGS84)
Elevation 1570
Relative position 8.75 MILES N53E OF PIERCE; 5.1 MILES N 10 W OF PURCELL

Site location context

Political divisions (FIPS codes)

Weld(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Purcell(quadrangle 1:24,000 scale)

Eaton(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lone Tree-Owl(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 Weld

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 009N 065W 25,26,35,36 S2 OF SW (25); S2 OF SE (26); N2 OF NE (35); N2 OF NW (36) Colorado

Comments on the location information

  • READE (1978) LISTS THIS AS BEING IN SECTION 34, T9N, R66W; PLOTTED MAPS PUT THE PIT IN THE LOCATION ABOVE. SPECIFIC LOCATIONS GIVEN ARE FOR CORNER BETWEEN SECTIONS 25, 26, 35, 36

Commodities

Commodity Importance
Uranium Primary

Materials information

Materials Type of material
Pyrite Gangue

Alteration

  • (Local) Alteration Present But Not Detectable In The Field By Usual Color Changes

Analytical data

Result ORE GRADE TO 0.89% U308

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Sand Creek Sandstone Member Of The Laramie Formation;White River Formation; Tuffaceous Beds Possibly Source Of Uranium
    Rock description Sand Creek Sandstone Member Of The Laramie Formation;White River Formation; Tuffaceous Beds Possibly Source Of Uranium
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -104.62001, 40.71054
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Cheyenne Basin

Ore body information

  • General form ROLL FRONT
    Thickness 9.14M
    Length 45.72M
    Width 4.57M
    Depth to top 0M
    Depth to bottom 9.14M

Controls for ore emplacement

  • Deposits Along Interface Between Altered /Unaltered Sand. Alteration In Cuttings Difficult To Detect By Usual Color Changes, So Exploration Was Guided By Radiometric Log Interpretation. Uranium Concentrated In Areas Of Rapid Sand Thining Or At Constriction In Thickest Portion Of Channel Sands. Usually Where Sands Are 25 To 125 Ft Thick

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1970
Discoverer Solomon Schlagel

Mining district

District name Grover/Keota Area

Ownership information

  • Type Operator
    Owner Hyland Nuclear, Trend Exploration Ltd.

Workings at the site

  • Type of workings Surface
    Overall depth 9.14M
    Overall length 45.72M
    Overall width 4.57M

Comments on the workings information

  • PIT 30 FT DEEP, 15 FT WIDE, 150 FT LONG

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DEPOSITS FORMED WHERE URANIUM COATS SAND GRAINS. DEPOSITS ARE SINOUS AND ELONGATE WITH NARROW LATERAL WIDTH

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-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.