Bonanza Shaft

The Bonanza Shaft is a copper mine located in Bear Lake county, Idaho at an elevation of 6,601 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

Name: Bonanza Shaft  

State:  Idaho

County:  Bear Lake

Elevation: 6,601 Feet (2,012 Meters)

Primary Mineral: Copper

Lat, Long: 42.2261, -111.18140

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.

Satelite image of the Bonanza Shaft

Bonanza Shaft MRDS details

Site Name

Primary: Bonanza Shaft
Secondary: Bonanza Mining Co.


Primary: Copper
Tertiary: Silver


State: Idaho
County: Bear Lake
District: Montpelier 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.


Not available


Type: Underground


Owner Name: Bonanza Mining Co. ( 1909 )


Not available


Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Underground
Discovery Method: Ore-Mineral In Place
Years of Production:
Significant: N
Deposit Size: S


General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains
Physiographic Detail: Preuss Range

Mineral Deposit Model

Not available




Type: R
Description: Home Canyon Anticline


Alteration Type: L
Alteration Text: Carbonized Plant, Fragments, Oxidation


Name: Shale
Role: Host
Age Type: Host Rock Unit
Age Young: Late Triassic

Name: Shale
Role: Host
Age Type: Host Rock
Age Young: Late Triassic

Analytical Data

Not available


Ore: Malachite


Comment (Deposit): No Well Defined Mineral Streak


Reference (Deposit): Mansfield, G. R., 1927 , Geography, Geology, And Mineral Resources Of Part Of Southeastern Idaho: USGS Prof. Paper 152 , P. 345 - 346

Reference (Deposit): Gale, H. S., 1910 , Geology Of The Copper Deposits Near Montpelier, Bear Lake County, Idaho, In Contributions To Economic Geology 1909 : USGS Bulletin 430 , P. 112 - 121

Reference (Deposit): 1910 Recon H. S. Gale, Bulletin 430

Reference (Deposit): 1927 Recon G. R. Mansfield, Prof. Paper 152

Idaho Gold

Where to Find Gold in Idaho

"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 at Where to Find Gold in Idaho.