The Letha Lee Prospect is a niobium (columbium) and ree mine located in Fremont county, Colorado at an elevation of 7,989 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: 7,989 Feet (2,435 Meters)
Commodity: Niobium (Columbium), REE
Lat, Long: 38.26861, -105.54833
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Letha Lee Prospect MRDS details
Site Name
Primary: Letha Lee Prospect
Commodity
Primary: Niobium (Columbium)
Primary: REE
Secondary: Vermiculite
Location
State: Colorado
County: Fremont
District: Gem Park Area
Land Status
Land ownership: Private
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
Type: Surface
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Surface
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Model Name: Alkaline complexes
Orebody
Not available
Structure
Type: R
Description: Central Cordillera (Southern Rocky Mountains)
Type: L
Description: Gem Park Complex
Alterations
Alteration Type: L
Alteration: Femitization
Alteration Text: Fenitization
Alteration Type: L
Alteration: carbonate
Rocks
Name: Pyroxenite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cambrian
Name: Pyroxenite
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian
Analytical Data
Not available
Materials
Ore: Ancylite
Ore: Monazite
Gangue: Calcite
Gangue: Strontianite
Gangue: Barite
Comments
Comment (Location): IN GEM PARK, SOUTH OF GEM MOUNTAIN AND WEST OF DEMOCRATIC MOUNTAIN, JUST WEST OF VERMICULITE MINE ; INFO FROM LAND.ST :(1976)
References
Reference (Deposit): PARKER, R. L. AND SHARP, W. N., 1970, MAFIC-ULTRAMAFIC IGNEOUS ROCKS AND ASSOCIATED CARBONATITES OF THE GEM PARK COMPLEX, CUSTER AND FREMONT COUNTIES, COLORADO: USGS PROF. PAPER 649, 24 P.
Reference (Deposit): TAYLOR, R. B., SCOTT, G. R., WOBUS, R. A. AND EPIS, R. C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-900, 1: 62,500
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
