1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Incas

Past Producer in Alaska, United States with commodity Gold
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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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10234120
MRDS ID A013155
MAS/MILS ID 0021110028
Record type Site
Current site name Incas
Alternate or previous names Incas Nos. 1-4
Related records 10002252

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -136.83542, 58.86362 (WGS84)
Elevation 580
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Hoonah-Angoon(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Fairweather D-3(quadrangle 1:63,360 scale)

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

Mount Fairweather(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Glacier Bay(hydrologic unit)

Northern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

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 035 S 051 E 01 SW Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Arsenopyrite Unknown
Calcite Unknown
Gold Unknown
Plagioclase Unknown
Quartz Unknown

Nearby scientific data

Main Entrance (1) -136.83542, 58.86362
ListMap

Economic information

Ore body information

  • Area 10HA
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. SLIGHT
    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 Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1924

Mining district

District name Juneau District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Wilderness

Comments on the production information

  • YEAR AND AMOUNT OF PAST PRODUCTION UNKNOWN.

Workings at the site

  • Type of workings Underground
    Length 61M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    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

    B1058B pp. 35, 37-39, 46-48

  • Deposit

    B1246 p. 160

  • Deposit

    P632 p. 62

  • Deposit

    MF436

  • Deposit

    OF78-316 p. 25

  • Deposit

    OF78-494 pp. C215-C217

General comments

Subject category Comment text
Deposit CLAIM LAPSED: NO CURRENT OWNER. MINERALIZATION DISCOVERED BY IBACH IN 1942. CLAIMS LOCATED IN 1936. PROPERTY LEASED BY LEROY MINING CO. IN 1945. WHEN WORKINGS DRIVEN IS UNCLEAR. SURFACE TRENCHING IS PROBABLE SOURCE OF PAST PRODUCTION.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-FEB-1988 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.