Brumfield

Past Producer in Alaska, United States with commodity Gold

Geologic information

Identification information

Deposit ID 10307454
Record type Site
Current site name Brumfield

Geographic coordinates

Geographic coordinates: -147.43295, 64.96967 (WGS84)
Relative position The claims that constitute the Brumfield mine lie in the valley of Hill Creek, a tributary of Gilmore Creek, in sec. 30, T. 2 N., R. 2 E., Fairbanks Meridian (Saunders, 1963). It is directly south of the Hill Creek mine (FB109).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Nearby scientific data

(1) -147.43295, 64.96967

Comments on the geologic information

  • Geologic Description = Hill (1933) shows a granite porphyry extending along the ridge south of Gilmore Creek from the head of Engineer Creek to the head of Pearl Creek, a distance of about 7 miles. All of the bedrock exposed by placer mining is part of this intrusion (Saunders, 1963). Gold is found throughout the granitic bedrock and also occurs in narrow quartz veinlets that carry visible free gold (Saunders, 1963). Saunders (1963) reported that placer mining was done using a small crawler-type tractor for stripping moss and one or two feet of overburden. The remaining two to four feet of gravel was shoveled by hand into a 6-inch sluice box. The descriptions are somewhat unclear, but this may be a residual placer on a decomposed, quartz-veined granite.

Economic information

Economic information about the deposit and operations

Development status Past Producer

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the production information

  • Production Notes = The production data are not available.

Comments on the workings information

  • Workings / Exploration = Saunders (1963) reported that placer mining was done using a small crawler-type tractor for stripping moss and one or two feet of overburden. The remaining two to four feet of gravel was shoveled by hand into a 6-inch sluice box.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF FB154

Bibliographic references

  • Deposit

    Hill, J.M., 1933, Lode deposits of the Fairbanks district, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163.

  • Deposit

    Saunders, R.H., 1963, Examination of a gold prospect on Nugget Creek: Alaska Territorial Department of Mines Prospect Evaluation 58-14, 2 p.

Comments on the references

  • Primary Reference = Saunders, 1963

General comments

Subject category Comment text
Deposit Model Name = Residual placer on a decomposed, quartz-veined granite porphyry(?)

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JUL-01 J.R. Guidetti Schaefer and C.J. Freeman Avalon Development Corporation