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Congress Copper Prospect

Occurrence in Alaska, United States with commodity Copper
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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. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10002345
MRDS ID A013262
Record type Site
Current site name Congress Copper Prospect
Related records 10161165

Geographic coordinates

Geographic coordinates: -136.28314, 57.7311 (WGS84)
Location accuracy 250(meters)
Relative position 1,800 FT. NW OF S TIP OF HILL ISLAND

Site location context

Political divisions (FIPS codes)

Sitka(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sitka C-7(quadrangle 1:63,360 scale)

Sitka NW(quadrangle 1:100,000 scale)

Sitka W OE(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-467, LOC. 24 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

Comments on the commodity information

  • NO MENTION OF GOLD.

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrrhotite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -136.28314, 57.7311
ListMap

Economic information

Ore body information

  • General form LENS, ROD

Comments on the geologic information

  • CRET-JUR GREENSTONE LENS IN CRET-JUR GRAYWACKE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1916

Workings at the site

  • Type of workings Underground
    Length 7.62M

Comments on the workings information

  • 25 FT. TUNNEL DRIVEN.

Comments on development

  • 1 CLAIM STAKED IN 1916. NO PRODUCTION RECORDED

Reference information

Bibliographic references

  • Deposit

    USGS MF-467, LOC. 24 (1972)

  • Deposit

    USGS B 929, P. 140-141 (1941)

  • Deposit

    USGS B 692, P. 123-124 (1919)

  • Deposit

    USGS OF 78-450, P. 36 (1978)

  • Other Database

    BAG-MF-467-24

General comments

Subject category Comment text
Deposit GREENSTONE LENS 25 FT. THICK IN GRAYWACKE HAS SCHISTOSE LOWER ZONE 10-12 FT. THICK CONTAINING NUMEROUS QUARTZ LENSES AND ROD-LIKE BODIES 1 IN. THICK, WITH CHALCOPYRITE AND PYRRHOTITE IN QUARTZ AND SCHIST.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1987 Leonard, Kenneth R. (Huber, Donald 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.