Amy Creek Mine, Tolovana Mining District, Yukon-Koyukuk Census Area, Alaska, USAi

Regional Level Types
Amy Creek Mine	Mine
Tolovana Mining District	Mining District
Yukon-Koyukuk Census Area	Census Area
Alaska	State
USA	Country

Location: Cobb (1972, MF-413), loc. 69, on the tailings along Amy Creek. The placer-mined ground is located near the mouth of Amy Creek, approximately 3 miles north of Amy Dome.

Geology: Gold has been found in in the lower 3 feet of gravel and on bedrock (Overbeck, 1920, p. 181; Mertie, 1918). Bedrock is mainly chert but there is some granite at the mouth of the second tributary above Livengood Creek. Basalt porphyry is the bedrock at the head of the creek; there is limestone and argillite near the mouth (Mertie, 1918). Bench gravels were mined east of the creek in 1918, to a depth of 25 to 100 feet, above a pay streak of 40 to 60 feet wide (Overbeck, 1920, p. 181). Concentrates of these gravels contain magnetite, limonite, hematite, chromite and pyromorphite. Joesting (1942, ATDM Pamph. 1) reported that the chromite and chrome spinel in placers was probably derived from serpentine in Middle Devonian basic volcanic rocks. Mining occurred in 1916, 1922, 1924, 1926, 1928-1939, 1967-1968 (Cobb, 1976; OFR 76-633, p. 9).

Workings: Shafts on different claims range from 25 to 100 feet deep.

Commodities (Major) - Au; (Minor) - Cr, Sb

Development Status: Yes; small

Deposit Model: Placer gold deposit (Cox and Singer, 1986; model 39a).

Other Databases

Link to USGS - Alaska:	LG021
Link to USGS MRDS:	10002984

Other Regions, Features and Areas containing this locality

References