Decker-Hortenstine No. 2 Prospect

The Decker-Hortenstine No. 2 Prospect is a molybdenum mine located in Elmore county, Idaho at an elevation of 6,001 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

Name: Decker-Hortenstine No. 2 Prospect  

State:  Idaho

County:  Elmore

Elevation: 6,001 Feet (1,829 Meters)

Primary Mineral: Molybdenum

Lat, Long: 43.6775, -115.44190

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 Decker-Hortenstine No. 2 Prospect

Decker-Hortenstine No. 2 Prospect MRDS details

Site Name

Primary: Decker-Hortenstine No. 2 Prospect
Secondary: Moly Claim Group


Primary: Molybdenum


State: Idaho
County: Elmore
District: Roaring River 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


Type: Located Claim


Not available


Owner Name: Decker And Hortenstine


Not available


Record Type: Site
Operation Category: Prospect
Deposit Type: Vein
Operation Type: Surface
Discovery Year: 1920
Years of Production:
Significant: N
Deposit Size: S


General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Trinity Mountains

Mineral Deposit Model

Not available




Not available


Not available


Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Analytical Data

Not available


Ore: Molybdenite
Gangue: Quartz


Comment (Development): Two Claims, One Cut On Each Claim. Note: Area Was Field Ckecked In 1989 By Bureau Of Mines; No Trace Of Mining Activity Was Observed. Several Samples Taken In Area.

Comment (Location): On S. Branch Of The East Fork Of The Roaring River


Reference (Deposit): Schrader, F. C., 1925, Molybdenite In The Rocky Bar District, Idaho In Contributions To Econ. Geol., 1923-1924: USGS Bulletin 750, P. 87 - 99

Reference (Deposit): U.S. Bureau Of Mines Open-File Report MLA 10-91, 1991, Table B-13, P. 63.

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.