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Twin Cove Lake - Ramshorn Lake Occurrence

Occurrence in Lemhi county in Idaho, United States with commodities Copper, Gold, Silver, Lead, Zinc
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10090168
MRDS ID W015309
MAS/MILS ID 0160590556
Record type Site
Current site name Twin Cove Lake - Ramshorn Lake Occurrence

Geographic coordinates

Geographic coordinates: -114.61234, 45.09018 (WGS84)
Elevation 2560
Relative position 3.5 MI NW OF HOODOO LANDING FIELD

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hoodoo Meadows(quadrangle 1:24,000 scale)

Bighorn Crags(quadrangle 1:100,000 scale)

Elk City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Middle Fork Salmon(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)

Frank Church-River of No Return Wilderness(Wilderness)

Wilderness 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 020N 016E 08 Idaho

Comments on the location information

  • At Headwaters Of Western Tributaries Of Wilson Creek Land Status Value Calculated 7-94 Using GIS Overlay Analysis With USFS Land Ownership Boundaries, 1:126,720 Scale.
  • Between Twin Cover And Ramshore Lakes, Near Wilson Mtn. Also Sec. 5.

Commodities

Commodity Importance
Copper Primary
Gold Tertiary
Silver Tertiary
Lead Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Magnetite Gangue
Pyrite Gangue

Alteration

  • (Local) Fe Stain

Analytical data

Result 16 SAMPLES ANALYZED BY A. A. CONTAINED LESS THAN 0.02 PPM AU, LESS THAN 0.2 PPM AG, 5 TO 40 PPM CU, 5 TO 100 PPM PB, 10 TO 100 PPM ZN

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Yellowjacket Formation
    Rock description Yellowjacket Formation-Quartzite;Hoodoo Quartzite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Hoodoo Formation

Nearby scientific data

(1) -114.61234, 45.09018
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name Synclinal
Type of structure Local
Structure name Anticline

Comments on the geologic information

  • Quartzite Of Yellowjacket Formation Is Host
  • Original Structures entry:

    Local - Plunging Synclinal And Anticlinal Structures Which Trend N And Plunge NNW

  • Original alteration entry:

    Local - Fe Stain

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Middle Fork District

Land status

Ownership category National Forest
Area name Salmon National Forest
Ownership category National Primitive Area
Area name Idaho Primitive Area

Reference information

Bibliographic references

  • Deposit

    Cater, F. W., And Others, 1973, Mineral Resources Of The Idaho Primitive Area And Vicinity, Idaho: USGS Bulletin 1304, 431 P

  • Deposit

    WFOC Mineral Property File 016 059 0556.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1974 Miller, Pat J. U.S. Geological Survey
Reporter 25-NOV-1983 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.

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