The Last Chance Number Five Prospect is a lead mine located in Custer county, Idaho at an elevation of 7,300 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: 7,300 Feet (2,225 Meters)
Commodity: Lead
Lat, Long: 44.1925, -114.62720
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.
Last Chance Number Five Prospect MRDS details
Site Name
Primary: Last Chance Number Five Prospect
Secondary: Last Chance No. 5 Prospect
Commodity
Primary: Lead
Tertiary: Silver
Tertiary: Gold
Tertiary: Zinc
Location
State: Idaho
County: Custer
District: Boulder Cr. 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: Challis 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 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
Type: R
Description: Idaho Batholith
Alterations
Alteration Type: L
Alteration Text: Brecciation, Oxidation
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: 2 CHIP SAMPLES ACROSS SHEAR ZONE: 0.1 OZ AG/TON 0.16% ZN.
Analytical Data: SELECT GRAB SAMPLE: 4.0% ZN, MINOR AU, AG, PB.
Materials
Ore: Jamesonite
Ore: Sphalerite
Ore: Anglesite
Ore: Covellite
Ore: Cubanite
Ore: Tetrahedrite
Gangue: Pyrite
Gangue: Calcite
Comments
Comment (Workings): 1 Uncaved Adit
Comment (Geology): Faults Strike N - S, Dip Steeply E.
Comment (Location): Located 1 Mi Up Last Chance Creek
References
Reference (Deposit): Kern, Richard, R., 1972, Geology And Economic Deposits Of The Slate Creek Area, Custer County, Idaho: Pocatello, Idaho, Idaho State Univ. Ms Thesis.
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): IBMG Mines & Prospects Of The Challis Quad, 1982, Mitchell
Reference (Deposit): Vannoy And Others, 1986, USGS Bulletin 1545e, P. 278, No. 66
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.
