Fall Creek

Mine, Probably inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale VA
Quadrangle map, 1:63,360-scale B-3
Latitude 61.4047
Longitude -145.1259
Nearby scientific data Find additional scientific data near this location
Location and accuracy Placer prospecting and some mining occurred along several miles of Fall Creek (including portions in the Valdez B-3 quadrangle). The map coordinates are about the midpoint of mining in the NW1/4 section 30, T. 5 S., R. 2 E., of the Copper River Meridian. This is locality 87 of Cobb and Matson (1972) and locality 67 of Winkler and others (1981 [OFR 80-892-B]).

Geologic setting

Geologic description

Placer gold, much of which is rounded and coarse, occurs on and in bedrock along Fall Creek and adjacent low benches (Schrader and Spencer, 1901; Moffit, 1918; Mulligan, 1974). About 6 miles of Fall Creek have been prospected, and small amounts of gold were recovered between 1899 and 1916. Bedrock in Fall Creek is greenschist-facies metaflysch of the Late Cretaceous Valdez Group (Winkler and others, 1981 [OFR 80-892-A]). Gold-bearing quartz veins are widespread through the Valdez Group in the southern Valdez quadrangle (Cobb and Matson, 1972).
Geologic map unit (-145.127983753566, 61.4042120264936)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Holocene.

Production and reserves

Workings or exploration Small-scale surface mining and prospecting occurred along Fall Creek between 1898 and 1916 (Cobb, 1979 [OFR 79-1241]).
Indication of production Yes; small

References