The Unknown (near Laramie) is a silica mine located in Albany county, Wyoming at an elevation of 7,500 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: 7,500 Feet (2,286 Meters)
Commodity: Silica
Lat, Long: 41.3281, -105.52830
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.
Unknown (near Laramie) MRDS details
Site Name
Primary: Unknown (near Laramie)
Secondary: Laramie
Commodity
Primary: Silica
Location
State: Wyoming
County: Albany
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: Past Producer
Operation Type: Surface
Mining Method: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Wyoming Basin
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Sandstone
Role: Host
Age Type: Host Rock
Age Young: Pennsylvanian
Age Old: Pennsylvanian
Analytical Data
Analytical Data: SiO2=99.04% and 97.92% Fe2O3 =0.73% and 2.01% (Bull. 50, p. 77, citing an unpublished report)
Analytical Data: 0.24% Fe2O3 and 5.13% CaO (Bull. 50, p. 77, citing an analysis from 1946)
Materials
Not available
Comments
Comment (Geology): "A soft, friable sandstone in the Casper formation (Pennsylvanian) contians a small amount of iron oxide and carbonaceous material. The outcrop is 2 ft to 4 ft thick, with overburden from zero to 10 ft thick." (Bull. 50, p. 77)
Comment (Deposit): A "glass sand" deposit.
References
Reference (Deposit): Osterwald and others, 1966, MINERAL RESOURCES OF WYOMING: GEOL SURV WYOMING BULL 50.
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