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  3. Mineral Resource Data System (MRDS)

Eureka Gold?-Copper Prospect

Occurrence in Alaska, United States with commodities Copper, Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10094082
MRDS ID A013367
Record type Site
Current site name Eureka Gold?-Copper Prospect
Related records 10233826

Geographic coordinates

Geographic coordinates: -135.15279, 56.98082 (WGS84)
Elevation 152
Location accuracy 500(meters)
Relative position 1.2 MI. NE OF EUREKA MTN., ON W SIDE OF HEAD OF SILVER BAY., Within 0.3 Mi., Within 0.3 Mi.

Site location context

Political divisions (FIPS codes)

Sitka(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Port Alexander D-4(quadrangle 1:63,360 scale)

Port Alexander NW(quadrangle 1:100,000 scale)

Port Alexander(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-464, LOC.2 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Copper Primary
Gold Primary

Comments on the commodity information

  • NO: DATA ON POSSIBLE GOLD CONTENT.

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -135.15279, 56.98082
ListMap

Economic information

Ore body information

  • Strike N 70 DEGREES W
    Dip 80 DEGREES S

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Chichagof

Land status

Ownership category National Forest

Comments on the workings information

  • NO DETAILS OF WORKINGS AVAILABLE

Comments on development

  • INSIGNIFICANT AMOUNT OF DEVELOPMENT AS OF 1898. NO RECORDED PRODUCTION.

Reference information

Bibliographic references

  • Deposit

    USGS MF-464, LOC. 2(1972)

  • Deposit

    USGS 18TH ANNUAL REPORT, PART III, P. 62, 79 (1898)

  • Deposit

    USGS OF 78-787, P. 19 (1978)

  • Other Database

    BAG-MF-464-2

General comments

Subject category Comment text
Deposit STRINGER LEAD OF PYRITIFEROUS QUARTZ IN SLATE NEAR DIKES AND BRECCIATED MASSES OF DIORITE. CONTAINS CHALCOPYRITE. NO SPECIFIC MENTION OF GOLD, BUT GOLD PROBABLY PRESENT.
Deposit VERY LITTLE INFORMATION AVAILABLE ON PROSPECT. NO SPECIFIC MENTION OF PRESENCE OF GOLD, BUT SINCE PROSPECT IS ON LIST OF GOLD MINES AND PROSPECTS, IT IS ASSUMED SOME GOLD WAS PRESENT. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-87 Niles, L.P. (Huber, D.F.) U.S. Geological Survey

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.