Helena Mine

The Helena Mine is a gold, silver, and copper mine located in Adams county, Idaho at an elevation of 5,801 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: Helena Mine  

State:  Idaho

County:  Adams

Elevation: 5,801 Feet (1,768 Meters)

Primary Mineral: Gold, Silver, Copper

Lat, Long: 45.1247, -116.64080

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 Helena Mine

Helena Mine MRDS details

Site Name

Primary: Helena Mine


Commodity

Primary: Gold
Primary: Silver
Primary: Copper
Tertiary: Molybdenum
Tertiary: Tungsten


Location

State: Idaho
County: Adams
District: Seven Devils District


Land Status

Land ownership: Private
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

Type: Patented
Type: Located Claim


Workings

Type: Surface/Underground


Ownership

Owner Name: C. W. Jones


Production

Year: 1949
Time Period: 1934 - 1949
Material type: ORE
Description: Cp_Grade: ^24 % Cu


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metamorphic
Operation Type: Underground
Discovery Year: 1887
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Seven Devils Mountains


Mineral Deposit Model

Not available


Orebody

Form: IRREGULAR, TABULAR, POCKETS, BUNCHES


Structure

Type: R
Description: Doubly Plunging Anticlinal Uplifts Separated By A Syncline.


Alterations

Alteration Type: L
Alteration Text: Oxidation, Sericitization


Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous


Analytical Data

Not available


Materials

Ore: Bornite
Ore: Scheelite
Ore: Powellite
Gangue: Quartz
Gangue: Pyroxene
Gangue: Scapolite
Gangue: Zoisite
Gangue: Albite
Gangue: Epidote


Comments

Comment (Production): Few Cars High Grade Ore Shipped In 1905 By C.W. Jones

Comment (Development): Mine Closed In 1949: No Further Ore In Sight.

Comment (Workings): 2 Tunnels: Lower One About 300 Ft. Long, Crosscuts, Several Drifts, And Some Surface Pits.

Comment (Deposit): Discovery Year: LATE 1880'S


References

Reference (Geology): Cannon, R.S. and Grimaldi, F.S, Lindgrenite and Cuprotungstite From the Seven Devils District, Idaho. (http://www.minsocam.org/ammin/AM38/AM38_903.pdf)
URL: http://www.minsocam.org/ammin/AM38/AM38_903.pdf

Reference (Deposit): Cook, E. F., 1954, Mining Geology Of The Seven Devils Region: Idaho Bureau Of Mines And Geology Pamphlet 97, 22 P.

Reference (Deposit): 1920 Compile Idaho Bureau Of Mines And Geology, Bulletin 1

Reference (Deposit): Livingston, D. C., And Laney, F. B., 1920, The Copper Deposits Of The Seven Devils And Adjacent Districts: Idaho Bureau Of Mines And Geology Bulletin 1, P. 75 - 76

Reference (Deposit): 1954 Geolmap Idaho Bureau Of Mines And Geol., Pamphlet 97

Reference (Production): Cook, E. F., 1954, Idaho Bureau Of Mines And Geol., Pamphlet 97, 22 P. Livingston, D.C., And Laney, F.B., 1920, Idaho Bur Mines And Geology Bulletin 1, P. 75.


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.