The Last Chance Mine is a gold mine located in Elmore county, Idaho at an elevation of 7,001 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: 7,001 Feet (2,134 Meters)
Commodity: Gold
Lat, Long: 43.7789, -115.11170
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: Gold
Secondary: Silver
Location
State: Idaho
County: Elmore
District: Or Middle Boise 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: Boise National Forest
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Atlanta Mines Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-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: Sawtooth Mountains
Mineral Deposit Model
Not available
Orebody
Form: POCKETS , POD/LENS
Structure
Not available
Alterations
Not available
Rocks
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
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: OXIDIZED ORE YIELDED $100/TON, 1880'S PRICES (50% FREE AU, 20 TO 30% SULFIDES, BALANCE IN AG). LOWEST LEVEL, 2-INCH QUARTZ VEIN ASSAYED $133/TON, 10-INCH VEIN, $14/TON, AND 36-INCH VEIN, $8.50/TON.
Materials
Gangue: Quartz
Comments
Comment (Location): Adjoins The Monarch Mine On The South; Previous Quad Designation = Boise 1:250000; Latitude-Longitude Values Calculated From Township, Range, Section.
Comment (Development): 10 - Stamp Steam Mill
Comment (Workings): Workings Mainly In And Along Gulch Above Monarch.
Comment (Production): Reported To Have Produced Small Lots Of Very Rich Ore.
References
Reference (Deposit): Anderson, A. L., 1939, Geology And Ore Deposits, Atlanta District Elmore Co., Idaho: Idaho Bureau Of Mines & Geol. Pam. 49, P. 61
Reference (Deposit): 1939 Geolmap Idaho Bureau Of Mines & Geol. Pam. 4
Reference (Production): Anderson, A. L., 1939, Idaho Bureau Of Mines & Geol. Pam. 49, P. 62
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.
