Occurrence in Alaska, United States with commodity Iron

Geologic information

Identification information

Deposit ID 10000898
MRDS ID A011552
Record type Site
Current site name Montana
Alternate or previous names Montana Bog Iron
Related records 10258093

Geographic coordinates

Geographic coordinates: -150.04273, 62.06955 (WGS84)
Relative position Reed and others (1978, locality 65) locate this site in the drainage basin of Goose Creek, about 1.3 miles southeast of Montana, Alaska, in Section 20, T. 23 N., R. 4 W., of the Seward Meridian.
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Geographic areas

Country State
United States Alaska


Commodity Importance
Iron Primary

Comments on the commodity information

  • Ore Material = other hydrous iron minerals.

Materials information

Materials Type of material
Limonite Ore

Nearby scientific data

(1) -150.04273, 62.06955

Comments on the geologic information

  • Geologic Description = Bog iron is currently forming a deposit about 50 feet in diameter, up to 8 feet thick, composed of limonite and probably other hydrous iron minerals (Berg and Cobb, 1967). The highest tenor reported is 41.2% Fe.
  • Age = Recent.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Willow Creek

Comments on the workings information

  • Workings / Exploration = Surface sampling is all that has been done here (Berg and Cobb, 1967). The highest tenor reported is 41.2% Fe.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011552
USGS Alaska Resource Data File ARDF TL047

Bibliographic references

  • Deposit

    Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.

  • Deposit

    Reed, B.L., Nelson, S.W., Curtin, G.C., and Singer, D.A., 1978, Mineral resources map of the Talkeetna Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-870-D, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., and Reed, B.L., 1980, Summaries of data and lists of reference to metallic and selected nonmetallic mineral deposits in the Talkeetna quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-884, 106 p.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.

  • Deposit

    Clark, A.L., and Cobb, E.H., 1972, Metallic mineral resources map of the Talkeetna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-369, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Berg and Cobb, 1967

General comments

Subject category Comment text
Deposit Model Name = Cox and Singer (1986) and Bliss (1992) do not include an ore deposit model for this type of occurrence.
Deposit Other Comments = This area is not large enough to be of economic interest; however, the area has not been prospected for similar, perhaps larger, deposits which may be present. This occurrence may be no more significant than the numerous unreported occurrences of this type occur throughout Alaska.

Reporter information

Type Date Name Affiliation Comment
Reporter 10-AUG-1998 Madelyn A. Millholland Millholland & Associates