Windy Creek Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USAi

Regional Level Types
Windy Creek Mine	Mine
Yentna Mining District	Mining District
Matanuska-Susitna Borough	Borough
Alaska	State
USA	Country

Deposit appears to be of glaciofluvial origin, similar to Nugget (TL035) and Bird Creek (TL040) placers. See also Cache Creek (TL029).
Location: C.C. Hawley and Associates, Inc. (1978, Fig. 42.-B(3)) locate this property on a small tributary that enters Cache Creek between Falls and Dollar Creeks, near the locality shown as Sunset on the published 15 minute map, in the southwest quarter of Section 6, T. 27 N., R. 9 W., of the Seward Meridian. Reed and others (1978) show this as locality 73.
Geology: The Windy Creek deposit consists of 40 to 60 feet of gravel with the lower 6 feet stained and cemented by iron oxides and hydroxides, overlain by glacial mud containing large angular boulders. Gold occurs in the lower iron-stained 6 feet. The gravel averages 5 inches in diameter with some boulders from 1 to 3 feet in diameter. Glacial mud layer is overlain by 20 feet of gravel containing abundant pyrite (Capps, 1913; C.C. Hawley and Associates, Inc., 1978). Concentrates contain arsenopyrite, cassiterite, native copper, gold, ilmenite, magnetite, pyrite, scheelite, garnet, quartz and zircon (Cobb and Reed, 1980). This deposit appears to be of glaciofluvial origin, similar to Nugget (TL035) and Bird Creek (TL040) placers. See also Cache Creek (TL029).
Workings: The drainage has been prospected and mined by various small scale surface methods.
Age: Pleistocene.

Commodities (Major) - Au, Cu, Sn, W
Development Status: Yes; small.
Deposit Model: Placer Au-PGE (Cox and Singer, 1986; model 39a).

Other Databases

Link to USGS - Alaska:	TL027

Other Regions, Features and Areas containing this locality

References