Craig

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

Geologic information

Identification information

Deposit ID 10000179
MRDS ID A010216
Record type Site
Current site name Craig

Geographic coordinates

Geographic coordinates: -131.27181, 56.46976 (WGS84)
Relative position The approximate location of the Craig occurrence, known in 1981 (Elliott and Koch, 1981, p. 8, loc. 10) only from a U.S. Bureau of Mines claim map (U.S. Bureau of Mines, 1979), is at an elevation of about 4000 feet on a steep mountainside southwest of a north-flowing tributary of the South Fork of Craig River. The occurrence, which is a few hundred feet below the foot of an icefield, is about 1.1 mile southwest of the Alaska-British Columbia boundary, and roughly 3.8 miles west-northwest of Mt. Pounder on the International Boundary. This location probably is accurate to within about a quarter of a mile.

Site location context

Political divisions (FIPS codes)

Wade Hampton(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bradfield Canal B-4(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

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

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore
Pyrite Ore
Pyrrhotite Ore

Alteration

  • (Local) Sulfide disseminations in metasedimentary rocks.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock

Nearby scientific data

(1) -131.27181, 56.46976

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks in the general area of the Craig occurrence are Mesozoic or Paleozoic metasedimentary rocks, locally including marble, and subordinate metavolcanic rocks (Elliott and Koch, 1981; Koch, 1996). ? the deposit (Elliott and Koch, 1981, loc. 10) consists of chalcopyrite, pyrite, and pyrrhotite disseminated in the metasedimentary rocks; the chalcopyrite also occurs in thin veinlets. Skarn float at or near the prospect contains magnetite and minor chalcopyrite.
  • Age = Mesozoic or Paleozoic

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Petersburg

Comments on the workings information

  • Workings / Exploration = Koch (1997, p. 24-26) reports anomalous values of Ag, Au, Cu, and Zn in a few rock and stream-sediment samples collected by the U.S.Geological Survey in the late 1970's in the area near the Craig occurrence.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Elliott and Koch, 1981

General comments

Subject category Comment text
Deposit Other Comments = Sixty claims were recorded in 1977 (U.S. Bureau of Mines, 1979), but were not active in 1981 (Elliott and Koch, 1981, loc. 10). ?

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.

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.