Iope Group

Prospect in Custer county in Idaho, United States with commodities Silver, Zinc, Gold, Lead, Copper, Antimony
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. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10070968
MRDS ID W014130
MAS/MILS ID 0160370672
Record type Site
Current site name Iope Group

Geographic coordinates

Geographic coordinates: -114.63812, 44.01459 (WGS84)
Elevation 3048
Relative position 20.5 MI SE OF STANLEY

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Washington Peak(quadrangle 1:24,000 scale)

White Cloud Peaks(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Salmon(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Sawtooth 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 Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 008N 015E 13 Idaho

Comments on the location information

  • On Ridge Between Washington Basin and Iope Creek

Commodities

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

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Silicified, Leaching

Analytical data

Result 4 CHIP SAMPLES ACROSS SHEAR ZONE AVG.:\n0.02 OZ AU/TON, \n0.75 OZ AG/TON, \n0.44% PB, \n3.23% ZN, \n0.12% SB.
Result A GRAB SAMPLE ASSAYED:\n3.4 OZ AG/TON, \n1.7% PB, \n7.0% ZN, \n0.4% SB, \n0.2% CU \nNO GOLD

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Milligen Formation-Argillite, Quartzite, Limestone
    Rock description Milligen Formation-Argillite, Quartzite, Limestone
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Mississippian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -114.63812, 44.01459

Economic information

Geologic structures

Type of structure Regional
Structure description Fault

Ore body information

  • Thickness 0.61M

Controls for ore emplacement

  • Shear Zone, Fracture

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1904

Mining district

District name East Fork District

Land status

Ownership category National Forest
Area name Sawtooth National Forest
Ownership category National Forest
Area name Sawtooth National Forest

Comments on the workings information

  • 2 Inclined Shafts and An Adit All Inaccessible

Comments on development

  • 3 Unpatented Lode Claims

Reference information

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1975 Murphy, Lyn S.; Miller, Pat U.S. Geological Survey
Reporter 01-JUL-1992 Federspiel U.S. Bureau of Mines

Beyond USGS

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