Fourth of July 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 61.478
Longitude -145.214
Nearby scientific data Find additional scientific data near this location
Location and accuracy This small placer mine is on Fourth of July Creek, about 1.2 miles upstream from its mouth on Slate Creek. It is at an elevation of about 2,150 feet in the SW1/4 section 34, T. 4 S., R. 1 E., of the Copper River Meridian. This is locality 88 of Cobb and Matson (1972) and locality 68 of Winkler and others (1981 [OFR 80-892-B]).

Geologic setting

Geologic description

A small amount of placer gold was recovered from Fourth of July Creek during exploration work in 1929 and 1930 (Smith, 1932, 1933). Bedrock in the 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 (-145.216092399628, 61.477506639465)
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 prospecting and mining occurred on Fourth of July Creek in 1929 and 1930 (Smith, 1932, 1933).
Indication of production Yes; small