King Salmon River

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale TA
Quadrangle map, 1:63,360-scale B-6
Latitude 60.31
Longitude -158.12
Nearby scientific data Find additional scientific data near this location
Location and accuracy Mertie (1938, p. 91) reported that coarse gold was found in the upper valley of King Salmon River. This location is arbitrarily chosen to represent this occurrence. For this record, the map site is on the river, 1.25 miles southeast of USGS benchmark King, in the SW1/4 of section 27, T 3 N, R 51 W, of the Seward Meridian. It is approximately located, probably within a few miles. Cobb (1972 [MF 384]; 1976 [OF 76-606]) included this occurrence under the name 'King Salmon River'.

Geologic setting

Geologic description

Mertie (1938, p. 91) reported that coarse gold was found in the upper valley of the King Salmon River in 1907. King Salmon River is a large west tributary to the Nushagak River. It flows east from headwaters along a low divide that separates it from the drainage of Tikchik River. Bedrock in the King Salmon River drainage is mid-Cretaceous clastic sedimentary rocks of the Kuskokwim Group locally intruded by Upper Cretaceous or Lower Tertiary granitic and hypabyssal felsic rocks. Clark and others (1970 [OF 438]) reported analytical data for stream sediments and one rock sample in the area of USGS benchmark King. Several of the stream-sediment samples in this area contained anomalous amounts of metals, including Ag, As, B, and Cu. The rock sample, from near the benchmark, contained weakly anomalous amounts of Ag and As. Bedrock in this area includes a small area of felsic intrusive rocks surrounded by hornfels (Clark and others, 1970 [OF 438]).
Geologic map unit (-158.122248736628, 60.3092844488592)
Mineral deposit model Placer Au-PGE (Cox and Singer, 1986; model 39a)
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Indication of production None