Mascot Gulch Mine, Kougarok Mining District, Nome Census Area, Alaska, USAi

Regional Level Types
Mascot Gulch Mine	Mine
Kougarok Mining District	Mining District
Nome Census Area	Census Area
Alaska	State
USA	Country

Location: Mascot Gulch is a small north tributary to Washington Creek in the northwest corner of the Bendeleben C-6 quadrangle. Washington Creek is the northwest headwater tributary of Kougarok River. The mouth of Mascot Gulch is about 3.5 miles upstream from the mouth of Washington Creek. This is locality 21 of Cobb (1972; MF 417; 1975; OFR 75-429).
Geology: Sainsbury and others (1969) show about 1,500 feet of placer mine workings along the channel of Mascot Gulch starting about 1,000 feet upstream from its mouth. Initial mining took place here at least by 1906 (Brooks, 1907) and unlike many gold placers in the upper Kougarok River drainage, the deposit on Mascot Gulch seems to be residual and close to its bedrock source. The bright, angular gold, some with crystal faces, occurs in irregular patches on phyllitic schist bedrock (Collier and others, 1908). Bedrock contains many quartz stringers and mining worked 2 to 3 feet of talus and decomposed bedrock. Considerable cassiterite was present in the placer concentrates (Collier and others, 1908). Bedrock in the area is part of a Lower Paleozoic metasedimentary assemblage (Till and others, 1986).
Workings: Sainsbury and others (1969) show about 1,500 feet of placer mine workings along the channel of Mascot Gulch starting about 1,000 feet upstream from its mouth.
Age: Quaternary

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

Other Databases

Link to USGS - Alaska:	BN044

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References