The Last Chance Mine is a silver, zinc, and lead mine located in Butte county, Idaho at an elevation of 6,299 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: 6,299 Feet (1,920 Meters)
Commodity: Silver, Zinc, Lead
Lat, Long: 43.5864, -113.57860
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 Mine MRDS details
Site Name
Primary: Last Chance Mine
Commodity
Primary: Silver
Primary: Zinc
Primary: Lead
Secondary: Copper
Tertiary: Bismuth
Tertiary: Gold
Location
State: Idaho
County: Butte
District: Lava Creek District
Land Status
Land ownership: BLM Administrative Area
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
Owner Name: Era Mining And Development Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Pioneer Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR STRINGERS, BUNCHES
Structure
Not available
Alterations
Alteration Type: L
Alteration: Silicification
Alteration Type: L
Alteration: Pyritization
Alteration Type: L
Alteration: Sericitization
Rocks
Name: Tuff
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Tuff
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Tuff
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Analytical Data
Analytical Data: THE SPAR VEIN ORE ASSAYED 125 OZ AG/TON, 4% CU
Analytical Data: PURE GALENA GAVE 2.6 OZ AG/TON
Analytical Data: NEARLY PURE ZINC SULFIDE GAVE 3.6 OZ AG/TON
Materials
Ore: Chalcopyrite
Ore: Tetrahedrite
Ore: Cerargyrite
Ore: Sphalerite
Ore: Galena
Ore: Wurtzite
Ore: Chalcanthite
Gangue: Dickite
Gangue: Barite
Gangue: Quartz
Gangue: Pyrite
Gangue: Marcasite
Gangue: Melanterite
Gangue: Chalcedony
Comments
Comment (Location): Along Champagne Creek
Comment (Deposit): Several Veins - 2 Major Veins Are Last Chance And Spar, The Spar Being Described Above; Last Chance Vein Strikes N 20-50 Deg E, Dips 85 Deg Nw, Is 90-100 Ft Long, 12 Ft Thick
Comment (Geology): Original Alteration entry: Silicification, Sericitization, Pyritization
Comment (Geology): Original Ore Control entry: Brecciated Zones, Fissures
References
Reference (Deposit): Anderson, A. L., 1929, Geology And Ore Deposits Of The Lava Creek District, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 32, 70 P.
Reference (Deposit): Anderson, A. L., 1947, Epithermal Mineralization At The Last Chance And Hornsilver Mines, Lava Creek District, Butte County, Idaho: Geol. Soc. America Bulletin V. 58, No. 5, P. 451-482.
Reference (Production): Anderson, A. L., 1947, Geol. Soc. America Bull, V. 58, No. 5, P. 451-482
Reference (Deposit): V.E. Mitchell, Et. Al; Mines And Prospects Map Series, 1981, Idaho Falls Quad, Location No. 118
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.
