Dewey Creek Mine, Nome Mining District, Nome Census Area, Alaska, USAi

Regional Level Types
Dewey Creek Mine	Mine
Nome Mining District	Mining District
Nome Census Area	Census Area
Alaska	State
USA	Country

Location: This alluvial gold placer mine is on Dewey Creek, an east tributary to Nome River. The map location is at an elevation of about 150 feet, in the southwest corner of section 10, T. 10 S., R. 33 W., Kateel River Meridian. It is locality 114 of Cobb (1972 [MF 463], 1978 [OFR 78-93]).
Geology: Gold was discovered on Dewey Creek by 1900; it was in 3 feet of auriferous gravel on a sandy clay layer overlain by 1 foot of sandy blue clay and 1 foot of muck. The gold is accompanied by considerable scheelite and garnet and some magnetite (Brooks and others, 1901). Some mining apparently took place in 1903 (Collier and others, 1908). Dewey Creek is near the northeast extension of the Anvil fault; this fault juxtaposes massive marble against marble and schist in this area. These rocks may in part correlate with the Casadepaga Schist (Hummel, 1962 [MF 247]; Bundtzen and others, 1994). Locally, the Anvil Creek fault is a mineralized structure (for example, NM234) containing stibnite and possibly gold.
Workings: Some small-scale surface placer workings are probably present.
Age: Quaternary.

Commodities (Major) - Au; (Minor) - W
Development Status: Yes; small
Deposit Model: Alluvial placer Au (Cox and Singer, 1986; model 39a).

Other Databases

Link to USGS - Alaska:	NM268

Other Regions, Features and Areas containing this locality

References