Kraken Hill Mine

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. 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. Mineral rights holdings
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10071072
MRDS ID W014281
MAS/MILS ID 160370271
Record type Site
Current site name Kraken Hill Mine
Alternate or previous names Holterman Prospect, Cachalot Vein, Marantha Mine, Chalspar Mine, Open Question Mine

Geographic coordinates

Geographic coordinates: -114.3339, 44.4864 (WGS84)
Elevation 1943
Relative position 4.5 MI SW 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)

Geographic areas

Country State County
United States Idaho Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 013N 018E 3 NWNESW Idaho

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary

Materials information

Materials Type of material
Fluorite Ore

Alteration

  • (Local) DOLOMITIZATION

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) Late Cambrian

Nearby scientific data

(1) -114.3339, 44.4864

Economic information

Ore body information

  • General form BEDDED
    Strike N 10 DEG E
    Dip 80 DEG SE
    Thickness 0.3M
    Length 64.01M
  • General form FISSURE VEIN, TABULAR, BRECCIA FILL
    Strike N 10 DEG E
    Dip 90DEG SE
    Thickness 2.5M
    Length 182M
    Width 122M
    Depth to top 60M
  • General form BRECCIA FILL, CONT METASOMATIC, RESIDUAL CONCENT
    Strike N15E
    Dip 08W
    Thickness 4M
    Length 20M
    Width 20M
    Depth to top 30M
  • General form BRECCIA FILL, TABULAR
    Thickness 5M
    Length 20M
    Width 25M
    Depth to top 0M
  • General form TABULAR, SHEAR ZONE
    Strike N12E
    Dip 85E
    Thickness 4M
    Length 150M
    Width 150M
    Area 10HA
    Depth to top 1M

Controls for ore emplacement

  • Fissures
  • Fracturing
  • Faulting

Comments on the geologic information

  • GEOLOGY SHEET 1-1 DESCRIBES MAIN (CACHALOT) VEIN. GEOLOGY SHEET 1-2 DESCRIBES KRAKEN HILL VEIN (NOT ORE) . GEOLOGY SHEET 1-3 DESCRIBES MILL CREEK DEPOSIT (NOT ORE)

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Non-metallic
Deposit size Small
Significant No
Discovery year 1951
Year of first production 1982

Mining district

District name Bayhorse District

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Patented
Type of mineral rights Minerals Only

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Maranatha Mining Co.
    Interest 100
    Home office Idaho
    Year 1983

Comments on the production information

  • DEPOSIT HAS BEEN A MINOR PRODUCER. MINE IS STILL IN DEVELOPMENT STAGES WITH MINOR ORE SHIPMENTS

Workings at the site

  • Type of workings Underground
    Length 480M
    Overall depth 20M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN STOPE
    Swell Factor .65
    Percent Waste Rock 0
    Percent Recovery 100
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 1
    Length of Inclines (m) 130
    Slope of Inclines 1 1Number of Inclines : 1
    Avg. Length of Adits (m) 140
    Number of Adits 3
    1st Condition of Workings OPEN
    2nd Condition of Workings PLUGGED
    Capacity 150
    Capacity Units MT ORE/DAY
    Unit Production Cost 15.2
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 2
    Year of Information 1983

Comments on the workings information

  • SEVERAL CUTS AND A SHAFT

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

  • Deposit

    CHAMBERS, A.E., 1966, GEOLOGY AND MINERAL RESOURCES OF PART OF THE BAYHORSE MINING DESTRICT, CUSTER COUNTY, IDAHO: PHD DISSERTATION, UNIVERSITY OF ARIZONA, TUCSON, ARIZ., 154 P.

  • Deposit

    MCGARY, L., 1983, PERSONAL COMMUNICATION

  • Deposit

    SHAWE, R.E., ET.AL., 1976, GEOLOGY AND RESOURCES OF FLUORINE IN THE UNITED STATES: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER NO. 933, P. 35-38.

  • Deposit

    U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 6-91, 1991, TABLE A-2, NO. 251, P. 166.

General comments

Subject category Comment text
Deposit SEVERAL SMALL VEINS - ONE STRIKES N 10 DEG E, DIPS 70 DEG W, 8 INCHES THICK, 20 FT. LONG. LARGEST VEIN DESCRIBED ABOVE UNDER DESCRIPTION OF DEPOSIT.

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-07-01 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.