Blackman Peak Prospects

Occurrence in Custer county in Idaho, United States with commodities Lead, Zinc, 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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10071207
MRDS ID W014469
Record type Site
Current site name Blackman Peak Prospects

Geographic coordinates

Geographic coordinates: -114.65342, 44.05629 (WGS84)
Elevation 3048
Relative position 18 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 02 Idaho

Commodities

Commodity Importance
Lead Primary
Zinc Critical Tertiary
Silver Tertiary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore

Analytical data

Result 1 CHIP SAMPLE ACROSS SHEAR ZONE IN QUARTZITE: 0.36% PB, 0.42% ZN. 2 SELECT GRAB SAMPLES OF SMALL STOCKPILES: 4.2 OZ AG/TON, 2.0% PB, 21.2% ZN. 3 CHIP SAMPLES FROM SHEAR ZONES IN GRANITIC ROCKS: 0.2 OZ AG/TON, 0.23% PB, 0.45% ZN. SELECT GRAB SAMPLE OF GRANITE: 0.1 OZ AG/TON, TRACE PB.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name White Cloud Stock-Granitic Rocks
    Rock description White Cloud Stock-Granitic Rocks
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Milligen Formation-Quartzite
    Rock description Milligen Formation-Quartzite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -114.65342, 44.05629

Economic information

Ore body information

  • Thickness 0.61M

Controls for ore emplacement

  • Shear Zones

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Fourth Of July Cr. Area

Land status

Ownership category National Forest
Area name Sawtooth National Forest

Comments on the workings information

  • 10 PITS

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 4 SHEAR ZONES, 1 IN QUARTZITE, 3 IN GRANITIC ROCKS
Deposit SAMPLES FROM THIS SITE CONTAINED .2 OZ SILVER PER TON UP TO 4.2 OZ SILVER PER TON; THE ZINC CONCENTRATION WAS FROM .42 PERCENT UP TO 21.2 PERCENT, AND THE LEAD SAMPLES RANGED FROM .36 PERCENT UP TO 2.0 PERCENT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 29-JUN-1992 Federspiel U.S. Bureau of Mines

Beyond USGS

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