Lower Snake River

Mine, Probably inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale NM
Quadrangle map, 1:63,360-scale C-1
Latitude 64.5063
Longitude -165.4397
Nearby scientific data Find additional scientific data near this location
Location and accuracy The lower part of Snake River was placer mined, in part in conjunction with deepening the river for navigation. This is locality 131 of Cobb (1972 [MF 463], 1978 [OFR 78-93]). The location of the mine is approximate. The map location is just east of the center of section 27, T. 11 S., R. 34 W., Kateel River Meridian.

Geologic setting

Geologic description

Fine gold was discovered on the bars of lower Snake River about July 28, 1898 (Schrader and Brooks, 1900). This discovery led to further prospecting in September, 1898, and to the subsequent major discoveries in Glacier Creek (NM220), Rock Creek (NM209), and Anvil Creek (NM236). Attempts were made to dredge gold along the lower river in 1900 and 1904 (Collier and others, 1908, p. 170). Dredges operated in the lower river between 1919 (Harrington, 1921, p. 232-233) and 1924 (Smith, 1926). Dredging in 1919 was maily to deepen the channel, but gold was recovered during this operation. This part of Snake River reworks coastal plain deposits, and some richer gold concentrations may at least locally have been present.
Geologic map unit (-165.442280938497, 64.5055310242108)
Mineral deposit model Alluvial placer Au (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Holocene.

Production and reserves

Workings or exploration Remnants of dredge tailings may locally be present.
Indication of production Yes; small

References