Iowa Boy Prospect

Prospect in Custer county in Idaho, United States with commodities Gold, Copper, Silver
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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10070912
MRDS ID W014049
MAS/MILS ID 0160370076
Record type Site
Current site name Iowa Boy Prospect

Geographic coordinates

Geographic coordinates: -115.04675, 44.69348 (WGS84)
Elevation 1829
Relative position 2 MI SE OF LITTLE SOLDIER MTN.

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Little Soldier Mountain(quadrangle 1:24,000 scale)

Pistol Creek(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper 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 Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 016N 012E 30 Idaho

Comments on the location information

  • 1.5 Mi SW of Confluence of Thomas Creek and Its West Fork.

Commodities

Commodity Importance
Gold Primary
Copper Tertiary
Silver Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Pyrite Gangue
Quartz Gangue

Analytical data

Result 7 SAMPLES ASSAYED TRACE TO 0.17 OZ AU/TON, 0.03 TO 6.0 OZ AG/TON, AVERAGED 0.66% CU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Idaho Batholith-Quartz Monzonite
    Rock description Idaho Batholith-Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -115.04675, 44.69348

Economic information

Ore body information

  • Width 0.15M

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Middle Fork District

Land status

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

Workings at the site

  • Type of workings Surface
    Overall length 30.48M

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit One Large Cut and Several Small Pits Were Dug Along Quartz Veins 15 Cm Or Less In Width. Quartz In Dumps Is Composed of 95 Percent Quartz and 5 Percent Combined Pyrite, Chalcopyrite and Malachite. Seven Samples of Dumped Vein Material Assayed A Trace To 5.82 Grams Gold Per Metric Tonne, 1.03 To 205.6 Grams Silver Per Tonne, and .66 Percent Copper; Although Veins Are Probably Too Narrow For Potential Resource.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1974 Miller, Pat J. U.S. Geological Survey
Reporter 19-MAR-1997 Weldin, Robert U.S. Bureau of Mines

Beyond USGS

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