The Unknown No. 357 is a mine located in Clear Creek 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.
Lat, Long: 39.7458, -105.58830
Map: View on Google Maps
Unknown No. 357 MRDS details
Primary: Unknown No. 357
County: Clear Creek
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 indicate a claim status and does not necessarily indicate an area is open to prospecting.
Type: Located Claim
Record Type: Site
Operation Category: Unknown
Operation Type: Underground
Mining Method: Unknown
Years of Production:
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Comment (Deposit): ASSAY VALUES OF .002 TO .037% U. RADIOACTIVITY IS 4 TIMES BA THE 7-1/2 MINUTE USGS MAP FOR THE AREA IS CENTRAL CITY.
Reference (Deposit): DATA FROM PRR-1619, EXAMINED IN 1952.