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Golconda Group

Past Producer in Custer county in Idaho, United States with commodities Silver, Lead, Zinc, Gold
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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. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10071049
MRDS ID W014246
MAS/MILS ID 0160370230
Record type Site
Current site name Golconda Group

Geographic coordinates

Geographic coordinates: -115.02484, 44.60798 (WGS84)
Elevation 2530
Relative position 28 MI NNW OF STANLEY

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Greyhound 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)

Geographic areas

Country State County
United States Idaho Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 015N 012E 29 Idaho

Comments on the location information

  • NW Slope of Sheep Mtn.

Commodities

Commodity Importance
Silver Primary
Lead Secondary
Zinc Critical Secondary
Gold Secondary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue

Alteration

  • (Local) Sericitized

Analytical data

Result RANDOM SAMPLE CONTAINED 60 OZ AG/TON
Result SAMPLES OF PYRRHOTITE VEIN AVE $14 AU/TON.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Limestone
    Rock description Limestone
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Pennsylvanian

Nearby scientific data

(1) -115.02484, 44.60798
ListMap

Economic information

Ore body information

  • Strike N 65 DEG W
    Dip 85 DEG SE
    Length 91.44M
    Width 1.52M

Controls for ore emplacement

  • Fissure

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1903

Mining district

District name Sheep Mountain District

Land status

Ownership category National Forest
Area name Challis National Forest

Ownership information

  • Type Owner
    Owner W. H. Casto

Reference information

Bibliographic references

  • Deposit

    Umpleby, J. B., And Livingston, D. C., 1920, A Reconnaissance In South Central Idaho: Idaho Bureau Of Mines And Geology Bulletin 3, 23 P

  • Deposit

    Treves Samual B 1953 Univ Of Idaho Ms Thesis 44p

General comments

Subject category Comment text
Deposit 2 Veins - Golconda No. 1 Described Above and A Flat Vein of Pyrrhotite Which Strikes E-W, Dips 30 Deg N and Is 20 Ft. Long

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 05-OCT-1990 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site