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  3. Mineral Resource Data System (MRDS)

Unuk River

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. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10000180
MRDS ID A010217
Record type Site
Current site name Unuk River
Related records 10282529

Geographic coordinates

Geographic coordinates: -130.77179, 56.32977 (WGS84)
Relative position The approximate location of this occurrence is on the northwest bank of Unuk River about a mile below the Alaska-British Columbia boundary (Elliott and Koch, 1981, p. 8, loc. 13). The location is probably accurate to within about a quarter of a mile.

Site location context

Political divisions (FIPS codes)

Prince of Wales-Hyder(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bradfield Canal B-3(quadrangle 1:63,360 scale)

Bradfield Canal SW(quadrangle 1:100,000 scale)

Bradfield Canal(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Southern Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Misty Fiords National Monument Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Misty Fjords National Monument Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

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

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

(1) -130.77179, 56.32977
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks in the general area of this occurrence are Mesozoic or Paleozoic metasedimentary rocks that locally include marble, and subordinate metavolcanic rocks (Elliott and Koch, 1981; Koch, 1996). The metamorphosed bedded rocks form a mile-wide septum between a stock of Eocene leucocratic quartz monzonite on the north, and a batholith of Tertiary or Cretaceous granodiorite and quartz diorite on the south. The mineral occurrence consists of pyrite, pyrrhotite, and chalcopyrite in a 2-foot thick quartz(?) vein (Wedow and others, 1952, p. 57).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Petersburg

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Elliott and Koch, 1981

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein?
Deposit Other Comments = This occurrence is in Misty Fiords National Monument.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-MAY-1998 H. C. Berg 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.