Black Pine Mine

Past Producer in Cassia county in Idaho, United States with commodities Gold, 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. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10143667
MAS/MILS ID 0160310008
Record type Site
Current site name Black Pine Mine

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -113.04695, 42.07992 (WGS84)
Elevation 1850
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Cassia(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Black Pine Peak(quadrangle 1:24,000 scale)

Oakley(quadrangle 1:100,000 scale)

Pocatello(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Curlew Valley(hydrologic unit)

Great Salt Lake(hydrologic accounting unit)

Great Salt Lake(hydrologic subregion)

Great Basin(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 Cassia

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 013 S 026 E 12 NENW Idaho

Commodities

Commodity Importance
Gold Primary
Silver Tertiary

Mineral occurrence model information

Model code 173
USGS model code 26a.1
Deposit model name Sediment-hosted Au
Mark3 model number 17

Nearby scientific data

Ore Body (1) -113.04695, 42.07992

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant Yes
Mining method Open Pit
Year of first production 1992
Plant type Leach
Milling method Heap Leach-Electrowin

Comments on exploration

  • AS OF 1994 AN INTENSIVE EXPLORATION PROGRAM IS UNDERWAY TO INCREASE RESERVES.

Mining district

District name Black Pine District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest
Area name Sawtooth National Forest

Ownership information

  • Type Owner
    Owner Pegasus Gold Inc.
    ID 1001436
    Interest 100
    Home office Idaho
    Year 1994
  • Type Operator
    Owner Black Pine Mining
    Home office Idaho
    Year 1996

Production statistics

  • Year 1992
    Description Gold Production 48700 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 1514739.52g
  • Year 1993
    Description Silver Production 28600 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 889559.55g
  • Year 1993
    Description Gold Production 66100 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 2055940.09g
  • Year 1994
    Description Silver Production 39100 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 1216146.1g
  • Year 1994
    Description Gold Production 65700 T Oz/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 2043498.7g
  • Year 1995
    Description Silver Production 59300 T Oz/Yr Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 1844436.42g
  • Year 1995
    Description Gold Production 108500 T Oz/Yr Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 3374727.68g

Reserves and resources

  • Type In-situ
    Estimate year 1996
    Demonstrated 7200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.5 g/mt Gold Major 1996
  • Type In-situ
    Estimate year 1996
    Demonstrated 12147000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.65 g/mt Gold Major 1996
  • Type In-situ
    Estimate year 1997
    Demonstrated 1802000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.57 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1997
    Demonstrated 1666000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.46 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1997
    Demonstrated 29924000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.44 g/mt Gold Major 1997
  • Type In-situ
    Estimate year 1997
    Demonstrated 33392000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 0.448 g/mt Gold Major 1997

Comments on the reserve resource information

  • TOTAL DEMONSTRATED RESERVES; PROV + PROB + ALL MINERALIZED MATERIAL, 12/31/96: COF FOR PROV + PROB 0.31 G/MT SR 1.8:1.0

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT

Reference information

Bibliographic references

  • Reserve-Resource

    PEGASUS GOLD INC. 1995 FORM 10-K, PP. 7, 9, 23.

  • Reserve-Resource

    RANDOL MINING DIRECTORY, 1996/97, U.S. MINES & MINING

  • Reserve-Resource

    COMPANIES, P193.

  • Deposit

    MSHA REPORT DATED APRINL 1980

  • Deposit

    PAY DIRT, 3-93, P.19B.

  • Deposit

    PEGASUS GOLD INC. 1994 FORM 10-K, PP. 6, 8, 20.

  • Deposit

    PEGASUS GOLD INC. 1994 ANNUAL REPORT, P.5,10.

  • Deposit

    RANDOL MINING DIRECTORY, 1994/95, U.S. MINES & MINING

  • Deposit

    COMPANIES, P266.

  • Deposit

    THE MINING RECORD, VOL 107, #34, AUG. 21, 1996, P19.

  • Deposit

    PEGASUS GOLD INC. 1996 ANNUAL REPORT & FORM 10-K, PP. 6-7,18

Reporter information

Type Date Name Affiliation Comment
Reporter 04-AUG-97 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 02/10/1981
MSHA mine ID1001436
Mine name (MSHA)Black Pine Mine
Current operatorPioneer Nuclear Inc
Current controller (parent)Pioneer Corp
Mine typeUnderground (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.