The Effa Mine is a gold mine located in Custer county, Idaho at an elevation of 8,599 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: 8,599 Feet (2,621 Meters)
Commodity: Gold
Lat, Long: 44.6033, -114.88580
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.
Effa Mine MRDS details
Site Name
Primary: Effa Mine
Secondary: Effa Prospect
Commodity
Primary: Gold
Tertiary: Silver
Tertiary: Copper
Location
State: Idaho
County: Custer
District: Loon Creek District
Land Status
Land ownership: National Forest
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
Type: Located Claim
Workings
Not available
Ownership
Owner Name: James Ivers
Percent: 100.0
Home Office: Utah
Info Year: 1982
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Deposit Type: Vein
Operation Type: Underground
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Salmon River Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Mica Schist
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Mica Schist
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Not available
Comments
Comment (Location): Outcrops Few Hundred Ft W of Lost Packer Vein
References
Reference (Deposit): Umpleby, J. B., 1913, A Preliminary Account Of The Ore Deposits Of The Loon Creek District, Idaho: U. S. Geol. Survey Bull. 530, P. 66 - 74
Reference (Deposit): 1913 Geolmap Umpleby, J. B., Bull. 53
Reference (Deposit): U.S. Bur. Mines Open-File Report MLA 88-83, 1983, Map No. 14, Appendix.
Reference (Deposit): U.S. Bur. Mines Open-File Report MLA 64-85, 1985, Table 2, No. 60, P. 71.
Idaho Gold
"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.
