North Hill Mine

Past Producer in Idaho county in Idaho, United States with commodities Gold, Sulfides, Beryllium
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10071626
MRDS ID W015123
MAS/MILS ID 0160490078
Record type Site
Current site name North Hill Mine
Alternate or previous names Summit Flat Mine

Geographic coordinates

Geographic coordinates: -115.58638, 45.74567 (WGS84)
Elevation 1859
Relative position 5 MI N OF OROGRANDE ; 11 MI SE OF GOLDEN

Site location context

Political divisions (FIPS codes)

Idaho(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Orogrande(quadrangle 1:24,000 scale)

Elk City(quadrangle 1:100,000 scale)

Elk City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork Clearwater(hydrologic unit)

Clearwater(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Nez Perce-Clearwater National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Idaho

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 028N 007E 21 Idaho

Comments on the location information

  • At Summit Flat, 6 Mi Se Of Old Golden

Commodities

Commodity Importance
Gold Primary
Sulfides Tertiary
Beryllium Critical Tertiary

Materials information

Materials Type of material
Beryl Ore
Gold Ore
Pyrite Gangue
Quartz Gangue

Analytical data

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

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Idaho Batholith-Diorite
    Rock description Idaho Batholith-Diorite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Gneiss (Xenoliths)

Nearby scientific data

(1) -115.58638, 45.74567

Economic information

Ore body information

  • General form PINCH AND SWELL
    Strike N 85 DEG W
    Dip 90 DEG
    Thickness 0.46M

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1897
Discoverer George Walters, J. M. Huston

Mining district

District name Orogrande District

Land status

Ownership category National Forest
Area name Nez Perce National Forest

Ownership information

  • Type Operator
    Owner F. J. Rudalph, R. Hayes

Comments on the production information

  • Production Reported As Several Thousand Dollars

Workings at the site

  • Type of workings Surface/Underground
    Length 381M

Comments on the workings information

  • 1 Caved Adit, 2 Caved Shafts, 8 Trenches, Several Prospect Pits

Comments on development

  • 7 Unpatented Claims

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1974 Miller, Pat J. U.S. Geological Survey
Updater 01-APR-1977 Miller, Pat J. U.S. Geological Survey
Reporter 10-OCT-1990 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references