The Big Four is a lead and zinc mine located in Summit 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.
Primary Mineral: Lead, Zinc
Lat, Long: 39.8788, -106.32584
Map: View on Google Maps
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 Four MRDS details
Primary: Big Four
District: Green Mountain
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Comment (Location): LATITUDE AND LONGITUDE WERE APPROXIMATED USING BUREAU OF LAND MANAGEMENT'S GGWL (GEOGRAPHIC WELL LOCATOR) PROGRAM FOR THE FOOTAGE CALL: T02S R80W SECTION 14, 2640 FT N, 2640 FT E.
Comment (Geology): GEOL.DESC: HI-GRADE SPHAL. 45% ZN WITH 10 TO 20 OZ SILVER PER TON.
Reference (Deposit): MIN. COMMODITY FILES, DOC. 3535-3562.
Reference (Deposit): CONSV. DIV. COMP. DATE, 8,65
Reference (Deposit): USBM REPT. INV. 3883, 1946