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Old Leyden Coal Mine

Past Producer in Jefferson county in Colorado, United States with commodities Uranium, Vanadium
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10239602
MRDS ID D002235
MAS/MILS ID 0080590008
Record type Site
Current site name Old Leyden Coal Mine
Related records 10090656

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -105.23308, 39.84689 (WGS84)
Elevation 1830

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Golden(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Clear(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 002 S 070 W 28 Colorado

Commodities

Commodity Importance
Uranium Tertiary
Vanadium Critical Tertiary

Materials information

Materials Type of material
Autunite Unknown
Carnotite Unknown
Tyuyamunite Unknown

Nearby scientific data

Ore Body (1) -105.23308, 39.84689
ListMap

Economic information

Ore body information

  • Strike N04E
    Dip 75E
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 SEDIMENTARY
    Shape of Orebody #2 TABULAR
    Shape of Orebody #3 LENTICULAR
    Primary mode of Origin RESIDUAL CONCENT
    Primary Ore Control FRACTURING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SILICIFICATION
    Type of Wallrock Alter. #2 PYRITIZATION
    Strike And Dip N04E:75E
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1874
Year of first production 1950

Mining district

District name Front Range

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Moreno Uranium Corp.
    Interest 100
    Home office Colorado
    Year 1975

Reference information

Bibliographic references

  • Deposit

    MINE MAP REPO # 401306 OWN MORENO-CRIPPLE CREEK C

General comments

Subject category Comment text
Deposit U.S.GEOL. SURV. BULL 1159 KEY SOURCE OF INFORMATION FOR THIS. ANOTHER SOURCE IS THE U.S. GEOL. SURVEY OPEN FILE REPORT ON RESULTS OF EXPLORATION AT THE OLD LEYDEN COAL MINE BY GUDE A MCKEOWN 1953. TOTAL PRODUCTION, 1952-1956 WAS 645.4 TONS OF AVERAGING .35% U308. ADDITIONAL INFORMATION FROM DMEA REPORT, DOCKET NO. 2328, DA 1952: URANIUM AT THE MINE IS IN A BRECCIATED AND SILICIFIED SEAM. AT THE TIME OF THE REPORT, INFERRED RESERVES WERE ESTI AT 17600 TONS AVERAGING .23% U308. INCLUDED IN THE DMEA REPO MINE AND LOCATION MAPS. THE DMEA REPORT CONCLUDED EXPLORATIO BE GRANTED.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Minecom U.S. Bureau of Mines

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.