The Cliff House Group is a uranium and vanadium mine located in Montezuma county, Colorado at an elevation of 5,879 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 5,879 Feet (1,792 Meters)
Commodity: Uranium, Vanadium
Lat, Long: 37.36139, -108.80750
Map: View on Google Maps
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Cliff House Group MRDS details
Site Name
Primary: Cliff House Group
Secondary: Cliff House
Secondary: Cliff House No. 2
Secondary: And Cliff House No. 4 Prospects
Commodity
Primary: Uranium
Primary: Vanadium
Secondary: Copper
Tertiary: Manganese
Location
State: Colorado
County: Montezuma
District: Mcelmo Creek (Ute Mountains) Area
Land Status
Land ownership: BLM Administrative Area
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Four Corners Uranium Co.
Home Office: Denver, Co.
Years: 1957 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Colorado Plateaus
Physiographic Section: Canyon Lands
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Paradox Basin, Blanding Basin, Four Corners Platform, San Juan Basin
Type: L
Description: Mcelmo Dome, Mcelmo Anticline, Unnamed Graben
Alterations
Alteration Type: L
Alteration Text: Fe Oxides, Cu Carbonates
Rocks
Not available
Analytical Data
Analytical Data: 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).
Materials
Gangue: Pyrite
Gangue: Marcasite
Gangue: Barite
Gangue: Pyrolusite
Gangue: Limonite
Gangue: Hematite
Comments
Comment (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.
Comment (Workings): SURFACE PROSPECT PITS AT ALL SITES, WITH TWO VERY SHORT DRIFTS AT CLIFF HOUSE NO. 4 PROSPECT
References
Reference (Deposit): EKREN, E.B., AND HOUSER, F.N., 1965, GEOLOGY AND PETROLOGY OF THE UTE MOUNTAINS AREA, COLORADO: USGS PROF. PAPER 481, P. 62-64.
Reference (Deposit): NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 281.
Reference (Deposit): EKREN, E.B., AND HOUSER, F.N., 1955, PRELIMINARY GEOLOGIC MAP OF THE MOQUI SE QUADRANGLE, MONTEZUMA COUNTY, COLORADO: USGS MAP MF-221.
Colorado Mining Photos
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