Past Producer in Alaska, United States with commodities Antimony, Copper, Gold, Lead, Silver

Geologic information

Identification information

Deposit ID 10209269
MRDS ID A015447
MAS/MILS ID 0020490045
Record type Site
Current site name Banner
Related records 10002952

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -147.36966, 65.07138 (WGS84)
Elevation 457
Location accuracy 100(meters)
(click for info)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Fairbanks 003 N 002 E 21 NWW2S2 Alaska


Commodity Importance
Antimony Primary
Copper Secondary
Gold Primary
Lead Secondary
Silver Secondary

Nearby scientific data

Main Entrance (1) -147.36966, 65.07138

Ore body information

  • Strike N60E
    Dip 65S
    Thickness 100M
    Depth to top 50M
    Width 7M
    Length 700M
    Area 100HA
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 SHEAR ZONE
    Type of Orebody #3 REPLACEMENT
    Primary mode of Origin HYDROTHERMAL
    Secondary mode of Origin OXIDATION
    Primary Ore Control FRACTURING
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 ADV ARGILLIC
    Type of Wallrock Alter. #2 SILICIFICATION
    Type of Wallrock Alter. #3 PYRITIZATION
    Strike And Dip N60E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 100
    Date of Last Modification 830321

Economic information

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1908
Year of first production 1908

Mining district

District name Fairbanks District

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category State

Ownership information

  • Type Owner-Operator
    Owner Keystone Mines, Inc.
    ID 5001425
    Interest 100
    Home office Alaska
  • Type Operator
    Owner Placid Oil Co.
    ID 5001425
    Home office Alaska
    Year 1983

Workings at the site

  • Type of workings Surface
    Area 75HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .56
    Percent Waste Rock 87
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 10
    Max. Pit Slope (degrees) 60
    Capacity 182
    Capacity Units MT ORE/DAY
    Unit Production Cost 12.84
    Units of Production $/MT ORE
    Operating Days per Year 200
    Operating Shifts per Day 1
    Year of Information 1975

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0020490045
USGS Mineral Resources Data System MRDS A015447 MAS references MRDS
Mine Safety and Health Administration MSHA MSHA 5001425

Bibliographic references

  • Deposit

    B480c p. 34

  • Deposit

    B520c p. 31

  • Deposit

    B525b pp. 170-171

  • Deposit

    B542i pp. 153, 155, 157

  • Deposit

    B592q pp. 325, 331, 333-335

  • Deposit

    B622l pp. 237-238

  • Deposit

    B642c p. 60

  • Deposit

    B649 pp. 36-37

  • Deposit

    B849B pp. 75, 101-102

  • Deposit


  • Deposit

    TDM1 p. 8

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    TDM2 p. 8

  • Deposit

    OF42 pp. 12, 14, 33

  • Deposit

    GC13 p. 15

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    OF324 pp. 7-8

  • Deposit

    OF383 p. 27

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    P625D pp. 8-9

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  • Deposit

    P700D p. 125

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  • Deposit


  • Deposit


Reporter information

Type Date Name Affiliation Comment
Reporter 12-FEB-1988 Mirl-Rdc U.S. Bureau of Mines