The Rose Dawn Mine is a mica and feldspar mine located in Park county, Colorado at an elevation of 9,150 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: 9,150 Feet (2,789 Meters)
Commodity: Mica, Feldspar
Lat, Long: 38.76861, -105.48333
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.
Rose Dawn Mine MRDS details
Site Name
Primary: Rose Dawn Mine
Secondary: Rose Dawn Mica Mine
Commodity
Primary: Mica
Primary: Feldspar
Secondary: Beryllium
Location
State: Colorado
County: Park
District: Micanite District
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: Unknown
Ownership
Owner Name: Colorado Feldspar Co.
Home Office: Canon City, Co.
Years: 1950 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1923
Discovery Year: 1923
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
Not available
Orebody
Form: LENTICULAR
Structure
Type: R
Description: Southern Front Range, Thirtynine Mile Volcanic Field
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Microcline
Ore: Muscovite
Ore: Beryl
Gangue: Garnet
Gangue: Apatite
Comments
Comment (Workings): 2 OPEN CUTS, 2 TUNNEL ACCESSIBLE IN 1950; FORMER WORKINGS MORE EXTENSIVE BUT CAVED, DESTROYED OR INACCESSIBLE; LARGER OPEN CUT 160X75X32 FT DEEP AT FACE; CUT 2 IS 20X8X20 FT DEEP; FIRST TUNNEL 83 FT, SECOND TUNNEL 31 FT LONG.
Comment (Geology): SCHIST STRIKES NEARLY NORTH, DIPS 65-75 E
Comment (Location): EAST OF MACK GULCH, JUST INTO PARK COUNTY NEAR FREMONT/PARK COUNTY BORDER ; INFO FROM LAND.ST :(1976)
Comment (Production): MANY TONS OF CRUDE MICA AND A FEW TONS OF POTASH FELDSPAR WERE RECOVERED BY UNITED STATES MICA COMPANY (MICA) AND THE COLORADO FELDSPAR COMPANY (FELDSPAR) PRIOR TO 1950
Comment (Deposit): WALL ZONE IS QUARTZ-MICROCLINE-ALBITE-MUSCOVITE PEGMATITE; CORE IS QUARTZ; PROBABLY ALBITE-MUSCOVITE BETWEEN CORE AND WALL ZONE
References
Reference (Deposit): WOBUS, R. A., EPIS, R. C. AND SCOTT, G. R., 1979, GEOLOGIC MAP OF THE COVER MOUNTAIN QUADRANGLE, FREMONT, PARK, AND TELLER COUNTIES, COLORADO: USGS MAP I-1179, 1:62,500.
Reference (Deposit): HANLEY, J. B., HEINRICH, E. W., PAGE, L. R., 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROFESSIONAL PAPER 227, P. 42-55
Colorado Mining Photos
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