The Unknown is a zinc and lead mine located in Boulder 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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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 MRDS details
Site Name
Primary: Unknown
Commodity
Primary: Zinc
Primary: Lead
Location
State: Colorado
County: Boulder
District: Jamestown
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
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
Ore: Lead
Comments
Comment (Production): BOULDER CO. 1869-1961: 5,638.24 T LEAD. ZINC MINERALIZATION NEGLIGIBLE
Comment (Geology): GEOL.DESC: LEAD-SILVER DEPOSITS IN VEINS AND IRREGULAR PIPELIKE BODIES IN OR NEAR BRECCIATED FLUORSPAR ZONES RELATED TO A STOCK OF SODIC GRANITE
References
Reference (Deposit): SHARPS, 1963, COLO. SCH. MINES MIN. IND. BULL. V. 6, NO.
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
