Valentine Group

The Valentine Group is a copper mine located in Lemhi county, Idaho at an elevation of 5,200 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

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.

Site Name

Primary: Valentine Group

Commodity

Primary: Copper
Secondary: Gold
Secondary: Silver

Location

State: Idaho
County: Lemhi
District: Loon Creek 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: Challis National Forest

Holdings

Type: Located Claim

Workings

Type: Surface/Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Deposit Type: Vein
Operation Type: Surface-Underground
Discovery Year: 1907
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Salmon River Mountains

Mineral Deposit Model

Not available

Orebody

Form: SEAM

Form: FISSURE VEIN

Structure

Not available

Alterations

Alteration Type: L
Alteration: Fe Oxide

Rocks

Name: Andesite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Triassic

Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Schist
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Name: Schist
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: CONTACT SAMPLE ASSAYED TRACE AU, 0.05 OZ AG/TON, 0.02 % CU. CHIP SAMPLES ASSAYED 0.16 TO 17.70 OZ AG/TON, 0.03 TO 5.95% CU

Materials

Ore: Chalcopyrite
Ore: Bornite
Ore: Malachite
Gangue: Quartz
Gangue: Pyrite

Comments

Comment (Development): 6 Claims

Comment (Location): On E Side Of Loon Creek, Just N. Of Cabin Creek

Comment (Workings): No Work Started Since 1908 . Developments Comprise 1 Shaft, 1 short Tunnel, And Some Shallow Cuts

Comment (Geology): Original ore control entry: Contact

Comment (Commodity): A Sample Taken Across The Contact In The Shaft Assayed A Trace Gold, 1.7 Gram Silver Per Metric Ton, 0.01 Percent Copper.

Comment (Geology): Original alteration entry: Local - Fe Oxide

References

Reference (Deposit): Cater, F. W., And Others, 1973, Mineral Resources Of The Idaho Primitive Area And Vicinity, Idaho: U. S. Geological Survey Bulletin 1304, 431 P.

Reference (Deposit): Ross, C. P., 1934 , Geology And Ore Deposits Of The Casto Quadrangle, Idaho: USGS Bulletin 854 , 135 P.

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.