1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Colorado Group

Occurrence in Lemhi county in Idaho, United States with commodities Silver, Lead, 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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10089299
MRDS ID W015767
Record type Site
Current site name Colorado Group
Related records 10144810

Geographic coordinates

Geographic coordinates: -113.2592, 44.3919 (WGS84)
Elevation 2591
Relative position 20.75 MI SSE OF LEAD ORE, IDAHO

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gilmore(quadrangle 1:24,000 scale)

Borah Peak(quadrangle 1:100,000 scale)

Dubois(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Birch(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper 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 012N 027E 9 Idaho

Comments on the location information

  • ABOUT .5 MI E OF LEMHI UNION MINE; LOCATION IS ONLY AN APPROXIMATE PLOT

Commodities

Commodity Importance
Silver Primary
Lead Primary
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Biotite Gangue
Calcite Gangue
Garnet Gangue
Muscovite Gangue
Olivine Gangue
Pyrite Gangue

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Dike-Quartz Diorite
    Rock description Dike-Quartz Diorite
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Limestone
    Rock description Limestone

Nearby scientific data

(1) -113.2592, 44.3919
ListMap

Economic information

Ore body information

  • General form TABULAR
    Strike N - S
    Dip 45 DEG W

Controls for ore emplacement

  • Fracture

Comments on the geologic information

  • DIKE SAID TO BE 1000 - 2000 FT WIDE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Spring Mountain District

Land status

Ownership category National Forest
Area name Salmon National Forest

Reference information

Bibliographic references

  • Deposit

    UMPLEBY, J. B., 1913, GEOLOGY AND ORE DEPOSITS OF LEMHI COUNTY, IDAHO: USGS BULL. 528, 182 P

  • Deposit

    1913 GEOLMAP UMPLEBY, J. B., BULL 52

Reporter information

Type Date Name Affiliation Comment
Reporter 1975-07-01 Ortman, Dale; Miller, Pat U.S. Geological Survey

Beyond USGS

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

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