Chalspar No. 1 Mine

Past Producer in Custer county in Idaho, United States with commodity Fluorine-Fluorite
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. Geologic structures
  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 10071073
MRDS ID W014282
MAS/MILS ID 0160370273
Record type Site
Current site name Chalspar No. 1 Mine
Alternate or previous names West Vein, Past Up Vein, Paulsen Property

Geographic coordinates

Geographic coordinates: -114.34092, 44.47909 (WGS84)
Elevation 2103
Relative position 5.5 MI WSW OF CHALLIS

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bayhorse(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

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 013N 018E 04 Idaho

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary

Materials information

Materials Type of material
Fluorite Ore

Analytical data

Result HOLES DRILLED INTO PAST UP VEIN RANGED FROM NO SIGNIFICANT MINERALIZATION TO 70% CAF2.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Dolomite
    Rock unit name Bayhorse Dolomite; Ramshorn Slate
    Rock description Bayhorse Dolomite;Ramshorn Slate
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -114.34092, 44.47909

Economic information

Geologic structures

Type of structure Regional
Structure description Associated Syncline On East Flank Of Bayhorse Anticline
Type of structure Local
Structure description Minor Faults

Ore body information

  • General form IRREGULAR - PINCH & SWELL
    Strike NW
    Dip NE
    Thickness 2.13M
    Length 91.44M

Controls for ore emplacement

  • Fault - Fissures

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No
Discovery year 1952

Mining district

District name Bayhorse District

Land status

Ownership category National Forest
Area name Challis National Forest

Ownership information

  • Type Owner
    Owner J. R. Simplot Co.

Comments on the production information

  • All Production From Past Up Vein

Comments on the workings information

  • Extensive Pits, Trenches, Shafts

Reference information

Bibliographic references

  • Deposit

    Anderson, A. L., 1954, A Preliminary Report On The Fluorspar Mineralization Near Challis, Custer County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 101, 13 P

  • Deposit

    1954 Recon Idaho Bureau Of Mines And Geology Pamphlet 10

  • Production

    Anderson, A. L., 1954, Ida. Bureau Of Mines & Geol. Pamphlet 101, P. 10.

General comments

Subject category Comment text
Deposit Discovery Year: EARLY 1950'S
Deposit 2 Veins, The Past Up And West. Past Up Vein Ave. Strike N 20 Deg W, 80 Deg Ne Dip, Ave 3 - 4 Ft. Thick. West Vein 300 Ft. Long, 5 Ft. Thick.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey

Beyond USGS

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