Walker Creek Prospect, Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi

Regional Level Types
Walker Creek Prospect	Prospect
Valdez Creek Mining District	Mining District
Matanuska-Susitna Borough	Borough
Alaska	State
USA	Country

MAS/MILS number 20760056.
Location: This placer prospect is on Walker Creek, about 2 miles upstream from its mouth on Sanona Creek. The location is accurate to within 1/2 mile.
Geology: Upper Walker Creek drains an area of siltstone, shale, and boulder and cobble conglomerate of the Jurassic, Naknek Formation (Csejtey and others, 1978). The lower creek drains volcanic rocks, argillite, and sandstone of the Talkeetna Formation. Gold occurs in the alluvial gravel deposits. The valley bottom is 50 to 400 feet wide and the gravel is 10 to 50 feet thick; the stream gradient is 70 to 250 feet per mile (Kurtak and others, 1992). Stream-sediment and placer samples collected by the U.S. Bureau of Mines contain up to 1 part per million silver, 5 parts per million gold, 140 parts per million tungsten, 0.19 percent lead, and 0.27 percent zinc; a sample of conglomerate contains 8 parts per billion palladium (Balen, 1990; Kurtak and others, 1992). Placer claims were staked in 1976. Exploration includes bulldozer cuts in the gravels.
Workings: Placer claims were staked in 1976. Exploration includes bulldozer cuts in the gravels. Stream sediment and rock samples were collected by the U.S. Bureau of Mines (Balen, 1990; Kurtak and others, 1992).
Age: Quaternary placer.
Reserves: Walker Creek contains an estimated 4 million cubic yards of potentially auriferous, gravel; no grade estimate is given (Kurtak and others, 1992).

Commodities (Major) - Au; (Minor) - Ag, Pb, Pd, W, Zn
Development Status: None
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)

Other Databases

Link to USGS - Alaska:	TK114

Other Regions, Features and Areas containing this locality

References