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

Coan Property

Occurrence in Lemhi county in Idaho, United States with commodities Gold, Lead
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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. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10071589
MRDS ID W015068
Record type Site
Current site name Coan Property
Related records 10144547

Geographic coordinates

Geographic coordinates: -114.33783, 45.35018 (WGS84)
Elevation 1219
Relative position 14 MI NW OF LEESBURG; 3.25 MI WSW OF SHOUP

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pine Creek Rapids(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 023N 018E 03,04 Idaho

Comments on the location information

  • E SIDE COAN GULCH N. OF SALMON RIVER BETWEEN BIG AND LITTLE SHEEPEATER CREEKS

Commodities

Commodity Importance
Gold Tertiary
Lead Tertiary

Materials information

Materials Type of material
Galena Ore
Feldspar Gangue
Muscovite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Leaching, Sericitization, Silicification

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Idaho Batholith-Granite;Dikes;Gneissic Granite
    Rock description Idaho Batholith-Granite;Dikes;Gneissic Granite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Schist And Quartzite (Inclusions)

Nearby scientific data

(1) -114.33783, 45.35018
ListMap

Economic information

Ore body information

  • Strike N 35 DEG E
    Dip 50 DEG SE
    Thickness 0.15M
    Length 106.68M

Controls for ore emplacement

  • Jointing

Comments on the geologic information

  • 2 SETS OF JOINTS, BOTH TREND N 32 - 39 DEG E, 1 DIPS 43 DEG SE, OTHER DIPS 50 DEG SE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discoverer Julius Weimer

Mining district

District name Mineral Hill District

Land status

Ownership category National Forest
Area name Salmon National Forest

Ownership information

  • Type Owner
    Owner Mike Coan, P. J. Shenon

Reference information

Bibliographic references

  • Deposit

    GRAY, F. A., 1927, ORE DEPOSITS OF THE MINERAL HILL DISTRICT, LEMHI COUNTY, IDAHO: MINNEAPOLIS, MINNESOTA, UNIV. OF MINNESOTA, PH D THESIS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1977 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey

Beyond USGS

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

Maps centered on this site