Chapman Creek

Mine, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale TN
Quadrangle map, 1:63,360-scale B-1
Latitude 65.3179
Longitude -150.11447
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Chapman Creek placer mine is at the west edge of section 30, T. 6 N., R. 12 W., of the Fairbanks Meridian. The site corresponds to location 43 of Cobb (1972), and is approximately 1 mile downstream from the U.S. Bureau of Land Management location of Chapman Creek (MAS number 0020480081).

Geologic setting

Geologic description

Chapman Creek drains an area underlain by Triassic to Cretaceous sandstone, shale, and argillite (Chapman and others, 1982; Reifenstuhl and others, 1997 [RI 97-15a]). Granite of unknown age crops out in the headwaters of Chapman Creek (Burand and Saunders, 1966). The main channel follows a high-angle fault.
Very little has been published about placer mining on Chapman Creek. Ellsworth (1910) reported prospecting on the creek in 1909. In 1912, four men mined on Chapman Creek (Ellsworth and Davenport, 1913). No other information about mining or production has been made public.
Burand and Saunders (1966) reported a stibnite occurrence (TN070) in the headwaters of Chapman Creek near the granite, and confirmed that placer mining had taken place on the creek.
Geologic map unit (-150.116970717937, 65.3174268986807)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Very little work has been reported on Chapman Creek. According to Ellsworth (1910), values from earlier placer prospecting were sufficient to attract other prospectors, and he reported some development work. In 1912, Ellsworth and Davenport (1913) reported that 4 men mined there.
Indication of production Yes; small