North Hill Mine

The North Hill Mine is a gold mine located in Idaho county, Idaho at an elevation of 6,099 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: North Hill Mine
Secondary: Summit Flat Mine

Commodity

Primary: Gold
Tertiary: Beryllium
Tertiary: Sulfides

Location

State: Idaho
County: Idaho
District: Orogrande 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: Nez Perce National Forest

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: F. J. Rudalph, R. Hayes

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Discovery Year: 1897
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

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

Mineral Deposit Model

Not available

Orebody

Form: PINCH AND SWELL

Structure

Not available

Alterations

Not available

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic

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

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

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

Analytical Data

Analytical Data: MOST BELOW 0.001 %.
Analytical Data: ANOMALOUS 0.024 % BEO IN COMPOSITE SAMPLE FROM 2 TRENCHES AT JCT N HILL RD AND CROOKED R TRAIL

Materials

Ore: Beryl
Ore: Gold
Gangue: Pyrite
Gangue: Quartz

Comments

Comment (Location): At Summit Flat, 6 Mi Se Of Old Golden

Comment (Development): 7 Unpatented Claims

Comment (Workings): 1 Caved Adit, 2 Caved Shafts, 8 Trenches, Several Prospect Pits

Comment (Production): Production Reported As Several Thousand Dollars

References

Reference (Deposit): Shenon, P. J., And Reed, J. C., 1934, Geology And Ore Deposits Of The Elk City, Orogrande, Buffalo Hump, And Tenmile Districts, Idaho County, Idaho: USGS Circ. 9, 89 P.

Reference (Deposit): Pattee, E. C., And Others, 1968 , Beryllium Resources Of Idaho, Washington, Montana, And Oregon: Usburmines Rept. Inv. 7148 , P. 63

Reference (Deposit): 1934 Recon P. J. Shenon And J. C. Reed, Circ. 9

Reference (Deposit): 1960 Geochem Usburmines Rept. Inv. 7148

Reference (Production): Shenon, P. J., And Reed, J. C., 1934, USGS Circ. 9, 89 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.