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Mikado

Producer in Alaska, United States with commodities Gold, Silver
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10135873
MRDS ID A012558
MAS/MILS ID 0020310001
Record type Site
Current site name Mikado
Alternate or previous names Summit Group, Grubstake Group, Ms 1746, Ms1998, Ms 1629, Bonanza Group, Eneveloe Group, Ms 1995, Little Squaw, Star Group, Mikado Group, Little Squaw North Group, Pioneer Group, Prospector Group, Drumlummon Group, Ms 1630, Ms 1632, Ms 1633, Ms1997
Related records 10107527

Comments on the site names

  • ALT. NAMES:M.S.1629,JUPITER,WOODCHUCK,M.S.1630,VENUS,M.S.1632, CHANDALAR RIVER FALLS MILLSITE,M.S.1633,SPRING CREEK MILLSITE, M.S.1746,SINE,CRYSTAL,BIG SQUAW,LITTLE SQUAW,COSINE FRACTION, M.S.1995,BONANZA,ENVELOPE,GOLDEN EAGLE,M.S.1997,STAR NOS.1-3, M.S.1997,COSINE,M.S.1998,CRYSTAL NO.2 LODE,NO.6 BELOW,NO.7 BELOW ,MOONSHINE ASSN,SUNSHINE ASSN,ST. MARYS GULCH,NO.2 BELOW,DISCOV- ERY,NO.1 ABOVE DISCOVERY,NOS.1-7 BELOW,CHANDALAR LODE,ECLIPSE, KELTY,OVERLOOK,WELCOME STRANGER.

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -148.28659, 67.53913 (WGS84)
Elevation 1303
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chandalar C-3(quadrangle 1:63,360 scale)

Chandalar N(quadrangle 1:100,000 scale)

Chandalar C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Fairbanks 031 N 003 W 04 Alaska

Commodities

Commodity Importance
Gold Primary
Silver Tertiary

Materials information

Materials Type of material
Arsenopyrite Unknown
Chalcopyrite Unknown
Galena Unknown
Gold Unknown
Limonite Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -148.28659, 67.53913
ListMap

Economic information

Ore body information

  • Strike N90W
    Dip 80N
    Thickness 1M
    Length 281M
    Width 60M
    Area 900HA
    Depth to top 30M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 SHEAR ZONE
    Shape of Orebody #2 IRREGULAR
    Type of Orebody #3 BRECCIA FILL
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. NONE
    Strike And Dip N90W:80N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 900
    Date of Last Modification 830321

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Deposit size Small
Significant Yes
Discovery year 1908
Mining method Timbered Stopes - Overhand Square-Set
Year of first production 1908
Milling method Gravity

Mining district

District name Chandalar

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Located Claim
Type of mineral rights Private Lease

Land status

Ownership category Mixed

Ownership information

  • Type Owner-Operator
    Owner Little Squaw Gold Mining Co.
    ID 5001401
    Interest 100
    Home office Washington
    Year 1997
    First year 1982

Comments on the ownership information

  • OWNER ADDRESS: LITTLE SQUAW GOLD MINING COMPANY P.O. BOX 184 SPOKANE, WASHINGTON 99210 TELE: (509) 747-5328 OPERATOR ADDRESS: CHANDALAR DEVELOPMENT ASSOCIATES 3701 RAINIER BANK TOWER SEATTLE, WASHINGTON 98101 TELE: (206) 682-6345

Production statistics

  • Year 1913
    Description Prod. 57 Oz Au, 8 Oz Ag From 34 Tons Ore 57 Troy Ounces Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 248.82g
    Major Gold Gold 1772.89g
  • Year 1971
    Description 685 Oz Au, 140 Oz Ag From 230 Tons Ore 685 Troy Ounces Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 21305.88g
    Trace Silver Silver 4354.48g
  • Year 1976
    Description 275 Oz Au, 112 Oz Ag From 463 Tons Ore 275 Troy Ounces Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 3483.58g
    Major Gold Gold 8553.45g
  • Year 1980
    Description 1500 Oz Au From 1600 Tons Ore 1500 Troy Ounces Commodity
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 46655.22g

Comments on the production information

  • PRODUCTION WAS OFTEN RECORDED ALONG WITH PLACER PRODUCTION.

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Measured 13600mt ore
    Indicated 4500mt ore
    Demonstrated 18100mt ore
    Inferred 18200mt ore
    Total resources 36300mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 85.2 g/mt Gold Major 1980
  • Type In-situ
    Estimate year 1980
    Measured 9100mt ore
    Demonstrated 9100mt ore
    Total resources 9100mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 58.7 g/mt Gold Major 1980
  • Type In-situ
    Estimate year 1980
    Demonstrated 45000mt ore
    Total resources 45000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 68.3 g/mt Gold Major 1980

Comments on the reserve resource information

  • NOT INCLUDED IN EITHER THE 1984 OR THE 1992 AU AVAIL. STUDIES.

Workings at the site

  • Type of workings Underground
    Length 630M
    Overall depth 30M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OVERHAND SQUARE-SET 10-46A
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics NONCOHERENT
    Rock Support Chars. UNSUPPORTING MAY SLOUGH
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 1
    Avg. Length of Adits (m) 200
    Number of Adits 3
    1st Condition of Workings OPEN
    2nd Condition of Workings PART ACCESSIBLE
  • Type of workings Underground
    Length 200M
    Field Value
    MAS Development Schedule # 2
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OVERHAND SQUARE-SET 10-46A
    Percent Waste Rock 0
    Percent Recovery 100
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics NONCOHERENT
    Rock Support Chars. UNSUPPORTING MAY SLOUGH
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Avg. Length of Adits (m) 100
    Number of Adits 2
    Capacity 100
    Capacity Units MT ORE/DAY
    Unit Production Cost 81.45
    Units of Production $/MT ORE
    Operating Days per Year 60
    Operating Shifts per Day 2
    Year of Information 1982

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MSHA MID 5000362 USGS CRIB A000498 USGS CRIB A000501 USGS CRIB A000504 USGS CRIB A000508 USGS CRIB A000518 USGS CRIB A000526 USGS CRIB A000530 MSHA ID 5000058

Reporter information

Type Date Name Affiliation Comment
Reporter 13-JUN-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 07/30/1984
MSHA mine ID5001401
Mine name (MSHA)Summit Mine
Current operatorCdc Partners
Current controller (parent)Footh Douglas
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.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.