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Cliff House Group

Occurrence in Montezuma county in Colorado, United States with commodities Uranium, Vanadium, Copper, Manganese
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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. 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. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10014204
MRDS ID D010874
Record type Site
Current site name Cliff House Group
Alternate or previous names Cliff House, Cliff House No. 2, And Cliff House No. 4 Prospects
Related records 10142792, 10191202, 10118402

Geographic coordinates

Geographic coordinates: -108.80817, 37.3614 (WGS84)
Elevation 1792
Relative position 11.9 TO 12.6 MILES N 86 W FROM CORTEZ

Site location context

Political divisions (FIPS codes)

Montezuma(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Battle Rock(quadrangle 1:24,000 scale)

Cortez(quadrangle 1:100,000 scale)

Cortez(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

McElmo(hydrologic unit)

Lower San Juan(hydrologic accounting unit)

San Juan(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CO)

Bureau of Land Management CO BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Colorado Montezuma

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 036N 018W 22,23,27 NE OF SE (22); NW OF SW (23); NE OF NE (27); NE OF NW (27) Colorado

Commodities

Commodity Importance
Uranium Primary
Vanadium Critical Primary
Copper Secondary
Manganese Critical Tertiary

Materials information

Materials Type of material
Barite Gangue
Hematite Gangue
Limonite Gangue
Marcasite Gangue
Pyrite Gangue
Pyrolusite Gangue

Alteration

  • (Local) Fe Oxides, Cu Carbonates

Analytical data

Result LIMONITIC SANDSTONE FROM CLIFF HOUSE PROSPECT CONTAINED 0.038% EQUIV U308 (RADIOMETRIC ANALYSIS) AND 0.040% U308 AND 0.16% V205 (CHEMICAL ANALYSIS). LIMONITIC SANDSTONE FROM CLIFF HOUSE NO. 4 CONTAINED 0.053% EQUIV U308 (RADIOMETRIC ANALYSIS) AND 0.028% U308 AND L.T. 0.1% V205 (CHEMICAL ANALYSIS).

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Mudstone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Summerville Formation;Junction Creek Sandstone
    Rock description Summerville Formation;Junction Creek Sandstone

Nearby scientific data

(1) -108.80817, 37.3614
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Paradox Basin, Blanding Basin, Four Corners Platform, San Juan Basin
Type of structure Local
Structure description Mcelmo Dome, Mcelmo Anticline, Unnamed Graben

Controls for ore emplacement

  • Ne-Trending Graben

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Mcelmo Creek (Ute Mountains) Area

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Four Corners Uranium Co.
    Home office Denver, Co.
    First year 1957

Comments on the workings information

  • SURFACE PROSPECT PITS AT ALL SITES, WITH TWO VERY SHORT DRIFTS AT CLIFF HOUSE NO. 4 PROSPECT

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ALL PROSPECTS LIE ON BOUNDING FAULTS OF UNNAMED GRABEN ON SW SIDE OF MCELMO DOME. MINERALIZATION AT CLIFF HOUSE PROSPECT LIMITED TO ZONE WHERE SUMMERVILLE FM MUDSTONE AND SANDSTONE DOWNDROPPED AGAINST 4-FT LIMESTONE BED IN NAVAJO SANDSTONE (TRI?-JUR). MINERALIZATION AT CLIFF HOUSE NO. 2 ASSOCIATED WITH LIMONITE-STAINED SANDSTONE IN SUMMERVILLE FM IN FAULT CONTACT WITH ENTRADA SANDSTONE (JUR). MINERALIZATION AT CLIFF HOUSE NO. 4 OCCURS IN SMALL GRABEN (SUBSIDIARY TO PRINCIPAL GRABEN) WHERE RADIOACTIVE UPPER PARTS OF SUMMERVILLE FM AND JUNCTION CREEK SANDSTONE DISPLACED AGAINST LOWER SUMMERVILLE FM. RADIOACTIVITY CLOSELY ASSOCIATED WITH UPPER SUMMERVILLE SANDSTONE BED CONTAINING CONCENTRATION OF LIMONITE, HEMATITE, BARITE, ASPHALTITE, AND CU CARBONATES, AND WITH FAULT BRECCIA ADJACENT TO BED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1983 Schwochow, Stephen D. 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.