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  3. Mineral Resource Data System (MRDS)

Rainbow

Past Producer in Alaska, United States with commodities Gold, Lead, Silver, Zinc
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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. Production statistics
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10113128
MRDS ID A013153
MAS/MILS ID 0021110026
Record type Site
Current site name Rainbow
Related records 10002251

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -136.84102, 58.88082 (WGS84)
Elevation 5
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Fairweather D-3 NW(quadrangle 1:24,000 scale)

Mount Fairweather NE(quadrangle 1:100,000 scale)

Mount Fairweather(quadrangle 1:250,000 scale)

Federal lands

Glacier Bay National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 034 S 051 E 36 NESWNW Alaska

Commodities

Commodity Importance
Gold Primary
Lead Tertiary
Silver Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Calcite Unknown
Galena Unknown
Gold Unknown
Limonite Unknown
Plagioclase Unknown
Quartz Unknown

Nearby scientific data

Main Entrance (1) -136.84102, 58.88082
ListMap

Economic information

Ore body information

  • Area 10HA
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Shape of Orebody #2 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PROPYLITIC
    Total Surface Area (HA) 10
    Date of Last Modification 830408

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1936

Mining district

District name Juneau District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Park

Production statistics

  • Year 1938
    Material ore
    Ore mined 7.71mt
    Description Production Reported 7 Short Tons Ore
  • Year 1939
    Description Production Reported 29 Troy Ounces Gold, 10 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 316.2g
    Major Gold Gold 917.1g
  • Year 1940
    Material Ore
    Ore mined 12.12mt
    Description 11 Short Tons Ore, Production Reported 52 Troy Ounces Silver, Production Reported 61 Pounds Copper, Production Reported 227 Pounds Lead
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 1644g
    Copper Copper 27.66mt
    Trace Lead Lead 102.96mt
  • Year 1942
    Description Production Reported 10 Troy Ounces Gold, 13 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 411.1g
    Major Gold Gold 316.2g
  • Year 1945
    Description Production Reported 13 Troy Ounces Gold, 6 Troy Ounces Silver
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 189.7g
    Major Gold Gold 411.1g

Comments on the production information

  • EXACT YEARS AND AMOUNT OF PRODUCTION UNKNOWN. FIGURES MAY INCLUDE AT LEAST PART OF THE PRODUCTION FROM THE FOLLOWING PROPERTIES MONARCH, INCAS MONARCH, GALENA NO. 1, & SUNRISE.

Workings at the site

  • Type of workings Surface
    Area 0.9HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT
    Hardness of Ore M-HARD ROCKS
    Year of Information 1980
  • Type of workings Underground
    Length 60M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method SHRINKAGE W/TIMBERED METHODS
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Avg. Length of Adits (m) 50
    Number of Adits 1
    1st Condition of Workings OPEN
    Year of Information 1980
  • Type of workings Underground
    Length 61M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ACTUAL
    Mining Method GOPHERING (COYOTING) 10-29
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. UNKNOWN
    Avg. Length of Adits (m) 61
    Number of Adits 1
    1st Condition of Workings CAVED AT PORTAL
    2nd Condition of Workings OPEN

Reference information

Bibliographic references

  • Ownership

    ALASKA KARDEX 111-006

  • Deposit

    B933A p. 17

  • Deposit

    B963A pp. 31, 33-34

  • Deposit

    B1058B pp. 37-39, 52, 54

  • Deposit

    B1246 p. 160

  • Deposit

    P632 pp. 59-60, 69

  • Deposit

    MF436

  • Deposit

    OF78-316 pp. 49-50

  • Deposit

    OF78-494 pp. C206-C215

General comments

Subject category Comment text
Deposit SECOND LARGEST GOLD PRODUCER IN REID INLET CLAIM LAPSED; NO CURRENT OWNER. SURFICIAL MATERIAL WAS MINED. ASSAYS SHOWED UP TO 10.211 OZ. AU & 2.043 OZ. AG PER TON, ALSO IN PPM 1,500 AS, 500 PB & 2,000 ZN. SIX LODE CLAIMS WERE LOCATED IN 1936 BY IBACH AND NEWMONT MINING COMPANY. PROPERTY LEASED IN 1945 BY LEROY MINING COMPANY.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-FEB-88 Sbh U.S. Bureau of Mines

Beyond USGS

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

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.