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H. R. Roberts' Claims

Past Producer in Lemhi county in Idaho, United States with commodities REE, Thorium, Phosphorus-Phosphates, Titanium, Copper
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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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10096362
MRDS ID W015188
MAS/MILS ID 0160590451
Record type Site
Current site name H. R. Roberts' Claims
Alternate or previous names Roberts' Claims

Geographic coordinates

Geographic coordinates: -114.2186, 45.4144 (WGS84)
Elevation 1280
Relative position ABOUT 3.5 MI BELOW INDIANOLA RANGER STATION

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ulysses(quadrangle 1:24,000 scale)

Bighorn Crags(quadrangle 1:100,000 scale)

Elk City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Salmon-Panther(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Salmon-Challis 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 Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 024N 019E 15 Idaho

Comments on the location information

  • N. of Salmon River about .5 mi across highway from Reese Ranch; Just over ridge separating Squaw Creek from the Salmon River, directly opposite mouth of Papoose Creek.

Commodities

Commodity Importance
REE Critical Primary
Thorium Secondary
Phosphorus-Phosphates Tertiary
Titanium Critical Tertiary
Copper Tertiary

Comments on the commodity information

  • Very high grade pockets of monazite. Large black nodules of massive ilmenite in marble in one pit

Materials information

Materials Type of material
Allanite Ore
Chalcopyrite Ore
Ilmenite Ore
Monazite Ore
Actinolite Gangue
Apatite Gangue
Barite Gangue
Calcite Gangue
Iron Gangue
Limonite Gangue
Magnetite Gangue
Pyrite Gangue
Quartz Gangue
Sphene Gangue

Analytical data

Result 2 SAMPLES ACROSS MARBLE ASSAYED 21.5 AND 14.0% COMBINED RAE OXIDES PLUS THORIA, 11.6 AND 4.73 %

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Dike-Rhyolite
    Rock description Dike-Rhyolite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Marble, Mica Schist, Augen Gneiss
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) -114.2186, 45.4144
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Box Work

Ore body information

  • General form POCKETS, SMALL BLEBS, SCATTERED PODS
    Strike N 65 DEG W
    Dip 60 DEG NE
    Length 304.8M
    Width 4.57M

Comments on the geologic information

  • Schist and gneiss enclosing marble north of first prospect hole strikes N 50 Deg W, dips 50 Deg NE.

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1948

Mining district

District name Indian Creek District

Land status

Ownership category National Forest
Area name Salmon National Forest

Ownership information

  • Type Operator
    Owner Kenneth White
  • Type Owner
    Owner H. R. Roberts, Helen M. Roberts

Comments on development

  • 7 claims

Reference information

Bibliographic references

  • Deposit

    Abbott, A. T., 1954, Monazite Deposits In Calcareous Rocks, Northern Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 99, 24 P.

  • Deposit

    Anderson, A. L., 1958, Uranium, Thorium, Columbium, And Rare Earth Deposits In The Salmon Region, Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 115, 81 P.

  • Deposit

    Sturm, F. H., 1954, General Geology Of Some Replacement Monazite Deposits In Lemhi County, Idaho: Moscow, Idaho, Univ. Of Idaho, M. S. Thesis, 64 P.

  • Deposit

    1954 Recon Idaho Bureau Of Mines And Geology Pamphlet 99

  • Deposit

    1958 Recon Idaho Bureau Of Mines And Geology Pamphlet 115

General comments

Subject category Comment text
Deposit Strike and dip above - monazite bearing marble. Deposit in schist and gneiss strikes N 50 Deg W, dips 50 to 60 Deg NE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1974 Miller, Pat J. U.S. Geological Survey

Beyond USGS

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

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