Boulder 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-4
Latitude 61.3332
Longitude -145.3496
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on Boulder Creek, about 1.4 miles upstream from its mouth on the Tiekel River. It is on the creek at an elevation of about 2,400 feet in the SE1/4 section 23, T. 6 S., R. 1 W., of the Copper River Meridian. This occurrence is approximately located, perhaps to within one-half mile. It is locality 85 of Cobb and Matson (1972) and locality 66 of Winkler and others (1981 [OFR 80-892-B]).

Geologic setting

Geologic description

Old placer gold workings are present on this creek (Mulligan, 1974). Earlier references to Boulder Creek mostly referred to lode prospecting in the general area (Cobb, 1979 [OFR 79-1241]). Bedrock in the general area 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 (-145.351675435874, 61.3327017715595)
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 placer gold mining has occurred on this creek (Mulligan, 1974).
Indication of production Yes; small

References