The Three Forks Group is a copper mine located in Carbon county, Wyoming at an elevation of 7,635 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: 7,635 Feet (2,327 Meters)
Commodity: Copper
Lat, Long: 41.0175, -107.02030
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.
Three Forks Group MRDS details
Site Name
Primary: Three Forks Group
Commodity
Primary: Copper
Secondary: Silver
Secondary: Zinc
Secondary: Iron
Secondary: Lead
Secondary: Gold
Location
State: Wyoming
County: Carbon
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: Occurrence
Operation Type: Unknown
Mining Method: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Galena
Ore: Cerargyrite
Ore: Quartz
Ore: Hematite
Ore: Sphalerite
Comments
Comment (Deposit): Gentry, 1976, lists the Three Forks Group as "secondary level", meaning it is a possible future producer of lead. There is no further discussion of the mine in the text.
Comment (Geology): Smoky quartz veins along a contact between granite and schist. Contains a small amount of Cu with some Pb and Zn. Veins stained by hematite near surface carry some Au.
Comment (Location): "Somewhere in Secs. 11, 12, 13, 14".
References
Reference (Deposit): Hausel, 1986, Mineral deposits of the Encampment mining district, Sierra Madre, Wyoming-Colorado: Geological Survey of Wyoming RI-37, p. 25.
Reference (Deposit): Hausel, W.D., 1997, Copper, lead, zinc, molybdenum, and associated ore deposits of Wyoming: Wyoming Geological Survey Bulletin 70, p. 178.
Reference (Deposit): Gentry, D.W., 1976, Lead and zinc deposits in Colorado and Wyoming, Final Report: Unpublished report by Donald Gentry, Prinicpal Investigator, Miing Engineering Dept, Colorado School of Mines under USBM Grant #G0264005.
Reference (Deposit): Osterwald and others, 1966, Mineral Resources of Wyoming: Wyoming Geological Survey Bulletin 50, p. 49 (copper), 84 (gold), 118 (hematite), 126 (lead), 174 (silver), 239 (zinc).
Reference (Deposit): Osterwald and others, 1959, Mineral Resources of Wyoming: Wyoming Geological Survey Bulletin 50, p. 46 (copper), 78 (gold), 105 (hematite), 113 (lead), 158 (silver), 219 (zinc).
Reference (Deposit): Hausel, W.D., 1989, The geology of Wyoming's predious metal lode and placer deposits: Geological Survey of Wyoming Bulletin 68, p. 158.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
