The R. H. Magnuson Mine is a feldspar and quartz mine located in Fremont county, Colorado at an elevation of 6,535 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: 6,535 Feet (1,992 Meters)
Commodity: Feldspar, Quartz
Lat, Long: 38.47139, -105.30056
Map: View on Google Maps
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R. H. Magnuson Mine MRDS details
Site Name
Primary: R. H. Magnuson Mine
Secondary: Magnusson Crosscut
Commodity
Primary: Feldspar
Primary: Quartz
Secondary: Beryllium
Location
State: Colorado
County: Fremont
District: Eightmile Park 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
Type: Underground
Ownership
Owner Name: R. H. Magnuson
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Underground
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Colorado Piedmont
Mineral Deposit Model
Model Name: Pegmatites
Orebody
Form: TABULAR
Structure
Type: R
Description: Northern Wet Mountains
Type: L
Description: Ne-Striking Faults
Alterations
Not available
Rocks
Name: Gneiss
Role: Host
Age Type: Host Rock Unit
Age Young: Mesoproterozoic
Age Old: Paleoproterozoic
Name: Gneiss
Role: Host
Age Type: Host Rock
Age Young: Mesoproterozoic
Age Old: Paleoproterozoic
Analytical Data
Not available
Materials
Ore: Microcline
Ore: Beryl
Ore: Quartz
Gangue: Garnet
Gangue: Tourmaline
Gangue: Biotite
Comments
Comment (Location): HALF MILE SOUTH OF MICA LODE MINE, NORTH OF ROYAL GORGE, SOUTHWEST OF MEYERS MINE, ON S SIDE OF E-TRENDING RIDGE ; INFO FROM LAND.ST :(1976) 01 (1976)
Comment (Workings): ADIT DRIVEN AT RIGHT ANGLE TO STRIKE
Comment (Geology): GEOL.DESC: E - STRIKING PEG.
References
Reference (Deposit): HANLEY, J.B., HEINRICH, E.W., AND PAGE, L.R., 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING AND UTAH, 1942-1944, USGS PROFESSIONAL PAPER 227, P. 40.
Reference (Deposit): TAYLOR, R.B., SCOTT, G.R., WOBUS, R.A. AND EPIS, R.C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE ROYAL GORGE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-869, 1:62,500.
Reference (Deposit): HEINRICH, E.W., 1948, PEGMATITES OF EIGHT MILE PARK, FREMONT COUNTY, COLORADO: AMERICAN MINERALOGIST, V. 33, NOS. 7-10, P. 420-448, 550-587.
Reference (Deposit): CONSV. DIV. COMP. DATE, 1,64
Colorado Mining Photos
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