Yakataga (east of White River)

Past Producer in Alaska, United States with commodities Gold, Titanium, Chromium

Geologic information

Identification information

Deposit ID 10307246
Record type Site
Current site name Yakataga (east of White River)

Geographic coordinates

Geographic coordinates: -142.13415, 60.03155 (WGS84)
Relative position This mine area is the first 6-mile long segment of the present Gulf of Alaska beach east of the mouth of White River to Lawrence Creek. The map site is the approximate midpoint of this beach segment. The location is accurate. It is included in locality 5 of Cobb (1972 [MF 373]; 1979 [OF 79-1246]).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Titanium Primary
Chromium Secondary

Materials information

Materials Type of material
Chromite Ore
Gold Ore
Hematite Ore
Ilmenite Ore
Magnetite Ore
Rutile Ore
Copper Ore
Amphibole Gangue
Garnet Gangue
Monazite Gangue
Pyroxene Gangue
Sphene Gangue
Zircon Gangue

Mineral occurrence model information

Model code 119
USGS model code 39a
BC deposit profile C01. C02
Deposit model name Placer Au-PGE
Mark3 model number 54

Nearby scientific data

(1) -142.13415, 60.03155

Comments on the geologic information

  • Geologic Description = The placer gold in Yakataga-area beaches was discovered in 1897 or 1898, and small-scale mining started in 1899 (Maddren, 1914). Rocker and sluice operations continued to WW II. Drill prospecting of raised beaches occurred after WW II (Thomas and Berryhill, 1962), as did sporadic attempts at small-scale mining. Most of the post-WW II mining was west of Cape Yakataga (see BG005; Miller, 1971). The gold in the Yakataga area, naturally concentrated in heavy-mineral accumulations by storm waves, is fine and flat. Other heavy minerals include amphibole, garnet, chromite, native copper, hematite, magnetite, pyroxene, rutile, sphene, ilmenite, zircon, and probably some monazite (Maddren, 1914, Thomas and Berryhill, 1962; Foley and others, 1995). The iron and titanium oxide contents of reconnaissance samples of beach sand from the Yakataga area were reported by Thomas and Berryhill (1962). These samples contained as much as 6.2 pounds of iron per ton but mostly less than 2 pounds of iron per ton. Their titanium oxide content was less than 2 pounds per ton in the magnetic fraction and as much as 7.3 pounds, but mostly less than 2 pounds, per ton in the non-magnetic fraction. Foley and others (1995) processed 94 samples from 69 locations, including some raised beaches, along this segment of the Yakataga shoreline. Spiral concentrates from these samples contained less than 0.028 gram (72 samples) to 0.790 gram of gold per ton (one outlier sample was reported to contain 12.219 grams of gold per ton), 0.31 to 3.66 percent titanium, and 78 to 6867 ppm zirconium. Heavy-mineral concentrates from six samples (8.42 to 18.20 weight percent of the original samples) contained 0.008 to 0.437 percent magnetite, 0.250 to 2.310 percent ilmenite, 0.631 to 4.780 percent garnet, 0.008 to 0.271 percent rutile, and 7.22 to 12.38 percent other minerals. Flotation concentrate from one sample contained 3.499 grams of gold per ton, less than 0.003 gram of platinum per ton, and 0.102 gram of palladium per ton. The placer gold in the Yakataga beaches may be derived from reworking of marine-glacial deposits of the Cenozoic Yakataga Formation (Reimnitz and Plafker, 1976).
  • Age = Quaternary.

Economic information

Economic information about the deposit and operations

Development status Past Producer

Comments on exploration

  • Status = Probably inactive

Mining district

District name Yakataga

Comments on the production information

  • Production Notes = A part of the 15,000 to 16,000 total ounces of gold produced in the Yakataga district was recovered from this area.

Comments on the workings information

  • Workings / Exploration = Small-scale rocker and sluice operations took place from 1899 to WW II. Drill prospecting of raised beaches occurred after WW II (Thomas and Berryhill, 1962), as did sporadic attempts at small-scale mining. Most of the post-WW II mining was west of Cape Yakataga (Miller, 1971).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF BG007

Bibliographic references

  • Deposit

    Maddren, A.G., 1914, Mineral deposits of the Yakataga district: U.S. Geological Survey Bulletin 592-E, p. 119-153.

  • Deposit

    Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Bering Glacier, Icy Bay, Middleton Island, and Yakutat quadrangles, Alaska: U.S. Geological Survey Open-File Report 79-1246, 41 p.

  • Deposit

    Thomas, B.I., and Berryhill, R. V., 1962, Reconnaissance studies of Alaskan beach sands, eastern Gulf of Alaska: U.S. Bureau of Mines Report of Investigations 5986, 40 p.

  • Deposit

    Miller, D.J., 1971, Geologic map of the Yakataga district, Gulf of Alaska Tertiary Province, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-610, scale 1:125,000.

  • Deposit

    Reimnitz, Erk, and Plafker, George, 1976, Marine gold placers along the Gulf of Alaska margin: U.S. Geological Survey Bulletin 1415, 16 p.

  • Deposit

    Foley, J.Y., La Berge, R.D., Grosz, A.E., Oliver, F.S., and Hirt, W.C., 1995, Onshore titanium and related heavy mineral investigations in the eastern Gulf of Alaska region, southern Alaska: U.S. Bureau of Mines Open-File Report 10-95, 125 p.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Bering Glacier quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-373, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Foley and others, 1995

General comments

Subject category Comment text
Deposit Model Name = Placer Au-PGE (Cox and Singer, 1986; model 39a)

Reporter information

Type Date Name Affiliation Comment
Reporter 12-DEC-01 Travis L. Hudson Applied Geology