The Pine Ridge Pegmatite is a feldspar mine located in Fremont county, Colorado at an elevation of 8,799 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: 8,799 Feet (2,682 Meters)
Commodity: Feldspar
Lat, Long: 38.4875, -105.67222
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.
Pine Ridge Pegmatite MRDS details
Site Name
Primary: Pine Ridge Pegmatite
Commodity
Primary: Feldspar
Secondary: REE
Location
State: Colorado
County: Fremont
District: Cotopaxi pegmatite region
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
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1941
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: Pegmatites
Orebody
Not available
Structure
Type: R
Description: Northern Wet Mountains, Thirtynine Mile Volcanic Field
Type: L
Description: Cotopaxi And Texas Creek Faults
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Microcline
Ore: Fluorite
Ore: Gadolinite
Gangue: Biotite
Gangue: Plagioclase
Gangue: Quartz
Gangue: Sericite
Comments
Comment (Location): ALONG INDIAN GULCH ; INFO FROM LAND.ST :(1976)
Comment (Deposit): POORLY EXPOSED, NARROW
Comment (Workings): 10-FT TRENCH
References
Reference (Deposit): Hanley, J.B., Heinrich, E.W., and Page, L.R., 1950, Pegmatite investigations in Colorado, Wyoming, and Utah 1942-1944, U.S.G.S. Professional Paper 227, 125 p.
Reference (Deposit): TAYLOR, R. B., SCOTT, G. R., WOBUS, R. A., 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
Reference (Deposit): HEINRICH, E. W., 1948, FLUORITE-RARE EARTH MINERAL PEGMATITES OF CHAFFEE AND FREMONT COUNTIES, COLORADO: AMERICAN MINERALOGIST, V. 33, NOS. 1-2, P. 72
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
