The Big Mica Beryl Prospect is a mica, silver, lead, and gold mine located in Larimer county, Colorado at an elevation of 8,921 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: 8,921 Feet (2,719 Meters)
Commodity: Mica, Silver, Lead, Gold
Lat, Long: 40.67083, -105.60194
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.
Big Mica Beryl Prospect MRDS details
Site Name
Primary: Big Mica Beryl Prospect
Commodity
Primary: Mica
Primary: Silver
Primary: Lead
Primary: Gold
Secondary: Nickel Laterite
Location
State: Colorado
County: Larimer
District: Mayesville District
Land Status
Land ownership: National Forest
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: 1966
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
Not available
Structure
Type: R
Description: Front Range Uplift, Sherman Batholith
Type: L
Description: Poudre River Shear Zone
Alterations
Not available
Rocks
Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic
Analytical Data
Analytical Data: USGS/USBM SAMPLE CONTAINED 0.1 OZ/TON AG, TRACE PB AND AU, 0.021% LA
Materials
Ore: Muscovite
Ore: Galena
Comments
Comment (Location): IN SADDLE ON DIVIDE BETWEEN MINERAL SPRINGS GULCH AND BENNETT CREEK NORTH OF CROWN POINT ROAD. ; INFO FROM LAND.ST :(1980)
Comment (Deposit): MICA-FELDSPAR-QUARTZ PEGMATITE TRENDS N 30 E, DIPS VERTICALLY
Comment (Workings): SEVERAL OPEN CUTS
References
Reference (Deposit): PEARSON, R.C., AND OTHERS, 1981, MINERAL RESOURCES OF THE COMANCHE-BIG SOUTH, NEOTA-FLAT TOP, AND NEVER SUMMER WILDERNESS STUDY AREAS, NORTH-CENTRAL COLORADO: USGS OFR 81-578, P. 27, 32
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
