The Fraction Claim Prospect is a lead and silver mine located in Custer county, Idaho at an elevation of 9,400 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: 9,400 Feet (2,865 Meters)
Commodity: Lead, Silver
Lat, Long: 43.9997, -114.63670
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.
Fraction Claim Prospect MRDS details
Site Name
Primary: Fraction Claim Prospect
Commodity
Primary: Lead
Primary: Silver
Secondary: Gold
Secondary: Zinc
Tertiary: Copper
Location
State: Idaho
County: Custer
District: Germania 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.
Administrative Organization: Sawtooth National Forest
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Underground
Discovery Year: 1883
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Sawtooth Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Silicified
Rocks
Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian
Name: Quartzite
Role: Host
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Analytical Data: ONE SAMPLE ASSAYED 14.6 OZ AG/TON, 0.01 OZ AU/TON. SAMPLES TAKEN ACROSS SHEAR ZONE AVERAGED 0.02 OZ AU/TON, 5.8 OZ AG/TON, 3.38% PB, 0.08% CU, AND 1.63% ZN.
Materials
Gangue: Quartz
Gangue: Calcite
Comments
Comment (Location): N. Face of Bible Back Mtn.
Comment (Development): Patented In 1897
Comment (Workings): 3 Adits and An Inclined Shaft.
Comment (Geology): Shear Zone Extends Through Rock Slide No. 1 Claim.
References
Reference (Deposit): Tschanz, C. M., And Others, 1974, Mineral Resources Of The Eastern Part Of The Sawtooth National Recreation Area, Custer And Blaine Counties, Idaho: USGS Open - File Rept., 648 P
Reference (Deposit): Vannoy And Others, 1986, USGS Bulletin 1545e, Pl. 3, No. 140
Reference (Reserve-Resource): Tschanz, C. M., And Others, 1974, USGS Open - File Report.
Reference (Deposit): Hailey Quad, Mines And Prospect Map Series 1981, V.E. Mitchell, Et. Al; Location No. 69
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.
