|Quadrangle map, 1:250,000-scale||CI|
|Quadrangle map, 1:63,360-scale||A-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The coordinates are for Van Curlers Bar along the Middle Fork of the Chena River. Placer claims extend along the Middle Fork of the Chena River from about 145 00 00 to 145 35 00 W long., but most mining was at or near this location.|
Geologic descriptionThe bedrock immediately beneath the Van Curlers Bar is described by Foster and others (1983) as phyllite, calcareous phyllite and marble. The headwaters of the Middle Fork of the Chena River, however, are underlain by pelitic schist. Placer gold mining activity was reported in 1912, 1921, and 1927 to 1940, and various mining and/or prospecting occurred up to 1981 (Menzie and others, 1983). A small dredge operation resulted in moderate production for many years prior to 1963, but details are lacking (Cobb, 1973, p. 129, [B 1374]).
|Geologic map unit||(-145.432412048854, 65.0316160039268)|
|Mineral deposit model||Placer gold deposit (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Workings or exploration||A dredge operated at Van Curlers Bar, and hydraulic methods have been used. Mining activity was reported in 1912, 1921, and 1927 to 1940, and there was various mining and/or prospecting up to 1981 (Menzie and others, 1983).|
|Indication of production||Yes; small|
|Production notes||A small dredge operation resulted in moderate production for many years prior to 1963, but details are lacking (Cobb, 1973, p. 129, [B 1374]).|
Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-633, 72 p.
Ellsworth, C.E., 1912, Placer mining in the Fairbanks and Circle Disctricts: U.S. Geological Survey Bulletin 520-H, p. 240-245.
Ellsworth, C.E., and Davenport, R.W., 1913, Placer mining in the Yukon-Tanana region: U.S. Geological Survey Bulletin 542-F, p. 203-222.
Foster, H.L., Laird, Jo, Keith T.E.C., Cushing, G.W., and Menzie, W.D., 1983, Preliminary geologic map of the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-170-A, 32 p., 1 sheet, scale 1:250,000.
|Reporters||C.J. Freeman, J.R. Guidetti Schaefer, A.S. Clements (Avalon Development Corporation)|
|Last report date||9/9/1998|