Bondholder Mine, Fairbanks District, Fairbanks North Star Borough, Alaska, USA

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Location: The Bondholder mine is at the head of the north fork of Saint Patrick Creek at an elevation of about 1,250 feet. It is about 1.5 miles east of the top of Ester Dome. The Bondholder workings are at the north end of the Mohawk group of claims (FB061). The mine is locality 156 of Cobb (1972 [MF 410]).
Geology: The Bondholder vein was opened by at least two shafts and several pits (Hill, 1933, p. 146). About 200 feet north of these shafts, an opening exposed a 4.5-foot-wide vein in mica schist that was oriented N. 24 E., dipping 45 NW. The vein contained iron- and arsenic-oxide stained quartz, a sample of which assayed $10.29 gold per ton (0.5 ounce of gold per ton) (Hill, 1933, p. 146). The vein averaged 6 feet in thickness in a 142-foot shaft. By 1931, five hundred tons of ore had been mined from the Bondholder vein.
Workings: The Bondholder vein was opened by at least two shafts, one 142 feet deep, and several pits (Hill, 1933, p. 146).
Alteration: Quartz is iron- and arsenic-oxide stained (Hill, 1933).
Production: By 1931, five hundred tons of ore had been mined from the Bondholder vein (Hill, 1933).

Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Schist-hosted gold-quartz vein

References

Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate. Hill, J.M., 1933, Lode deposits of the Fairbanks district, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163.

Mineral List

Gold

1 entry listed. 1 valid mineral.