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  3. Mineral Resource Data System (MRDS)

Black Cloud

Occurrence in Boulder 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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10017620
MRDS ID DC03922
Record type Site
Current site name Black Cloud
Related records 10214748

Geographic coordinates

Geographic coordinates: -105.39349, 40.06309 (WGS84)
Relative position ABOUT 1 MI E OF GOLD HILL

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gold Hill(quadrangle 1:24,000 scale)

Estes Park(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

St. Vrain(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Boulder

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 01N 72W 12 Colorado

Commodities

Commodity Importance
Uranium Primary

Materials information

Materials Type of material
Pitchblende Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -105.39349, 40.06309
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: ASSOC. MINERALS: QTZ, PYRITE, GOLD, GALENA, SPHALERITE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Gold Hill

Comments on the production information

  • 1500 FT DRIFTS. MOST OF BLACK CLOUD OUTPUT MADE BEFORE 1910

Reference information

Bibliographic references

  • Deposit

    SIMS & SHERIDAN, 1964, USGS BULL. 1159.

  • Deposit

    LOVERING & GODDARD, 1950, USGS PP 223, PL. 23

  • Deposit

    CONSV. DIV. COMP. DATE, 1,62

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1973 Conservation Division Files U.S. 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.