Yankee Fork District

Past Producer in Custer county in Idaho, United States with commodities Silver, Gold, Zinc, Copper, Lead
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Alteration
  7. Nearby scientific data
  8. Geologic structures
  9. Controls for ore emplacement
  10. Economic information about the deposit and operations
  11. Mining district
  12. Bibliographic references

Geologic information

Identification information

Deposit ID 60001621
MRDS ID W002480
Record type District
Current site name Yankee Fork District

Geographic coordinates

Geographic coordinates: -114.67903, 44.37459 (WGS84)
Relative position 7 1/2 MINUTE QUADS AVAILABLE-CUSTER AND SUNBEAM, IDAHO

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sunbeam(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

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 Custer

Commodities

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

Alteration

  • (Local) SERICITIZATION
  • (Local) SILICIFICATION

Nearby scientific data

(1) -114.67903, 44.37459

Economic information

Geologic structures

Type of structure Local
Structure description PORPHYRY DIKES; BROAD ANTICLINE IN CHALLIS VOLCANICS, STRIKES N 40 DEG E; FOLDED PALEOZOIC ROCKS

Controls for ore emplacement

  • Fault/fracture

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Discovery year 1870
Year of first production 1870

Mining district

District name YANKEE FORK DISTRICT

Reference information

Bibliographic references

  • Deposit

    UMPLEBY, J.B., 1913, SOME ORE DEPOSITS IN NORTHWESTERN CUSTER CO.: USGS BULL. 539, P. 76-89

  • Deposit

    ANDERSON, A.L., SILVER-GOLD DEPOSITS OF THE YANKEE FORK DISTRICT, CUSTER COUNTY, IDAHO: IDAHO BUR. OF MINES AND GEOL. PAMPH 83, 37, 1949

Beyond USGS

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