The Unknown is a silica mine located in Jefferson county, Colorado.
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
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Unknown MRDS details
Site Name
Primary: Unknown
Commodity
Primary: Silica
Location
State: Colorado
County: Jefferson
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Not available
References
Reference (Deposit): CONSV. DIV. COMP. DATE, 3,64
Reference (Deposit): VARNES & ROLNICK, 1946, USGS COMMODITY FILES, GR II, REEL 13, DOC. 2712
Reference (Deposit): JONES, 1945?, LIST OF OPERATING MINES, MILLS, ETC. 1944, COLO. BUREAU OF MINES
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.