Hanshaw Bar Mine, Koyukuk Mining District, Yukon-Koyukuk Census Area, Alaska, USAi

Regional Level Types
Hanshaw Bar Mine	Mine
Koyukuk Mining District	Mining District
Yukon-Koyukuk Census Area	Census Area
Alaska	State
USA	Country

Location: The location of Hanshaw Bar is described by Reed (1938) as being on the left limit of the South Fork, Koyukuk River about 4.8 miles above Ironside Bench (in the Bettles quadrangle) and about 0.25 mile above Davis Creek (in the Bettles quadrangle). As plotted here, the mine is on a sand bar on the east bank of the South Fork, in the southwest corner of section 8, T. 25 N., R. 13 W. of the Fairbanks Meridian. Location is accurate within one-half mile.
Geology: Gold, as fine, flat flakes, is distributed throughout 2 to 3 feet of medium- to fairly fine-grained gravel and sand on a high-water bar in the channel of the South Fork, Koyukuk River. The paying gravel and sand lies on a false bedrock of clayey sand. Reed (1938) noted that the average value of the ground was $0.23 per square foot of bedrock that the gold had a fineness of 907. Mining in 1937 was by shoveling into sluice boxes and washing with water from the South Fork (Reed, 1938).
Workings: Mining in 1937 was by shoveling into sluice boxes and washing with water from the South Fork (Reed, 1938).
Age: Quaternary.
Production: Probably minor production.

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

Other Databases

Link to USGS - Alaska:	WI155

Other Regions, Features and Areas containing this locality

References