Banner Creek

Mine, Probably inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale SO
Quadrangle map, 1:63,360-scale D-5
Latitude 64.823
Longitude -164.317
Nearby scientific data Find additional scientific data near this location
Location and accuracy Banner Creek is an east tributary to the Casadepaga River. The mouth of Banner Creek is 1.2 miles downstream from the site of the old Ruby roadhouse at an elevation of about 315 feet. This locality, on lower Banner Creek about 0.2 miles upstream from its mouth, is 72 of Cobb (1972, MF 445; 1978, OF 78-181).

Geologic setting

Geologic description

Small-scale placer mining apparently took place along most of this creek in the early history of the area (Smith, 1910). The gold was mostly coarse, had a fineness of 929, and was present in 8 to 10 feet of gravel but mostly concentrated on bedrock (Brooks and others, 1901). The creek was rich compared to others in the area; 4 men sluiced for 2.5 days in 1899 and recovered $400 or about 20 ounces of gold (Brooks and others, 1901). Bedrock in the lower part of the creek is Paleozoic marble but the headwaters are underlain by pelitic schist of possible Cambrian or Precambrian age (Till and others, 1986).
Geologic map unit (-164.31961575697, 64.822258830684)
Mineral deposit model Placer Au-PGE (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary; the numerous incised terraces along the Casadepaga River and its major tributaries indicate that more than one cycle of erosion and deposition has developed placer deposits in the area. The low elevations between 170 and 270 feet along the first 11 miles of the river, suggest that Quaternary sea level fluctuations could have influenced placer development.

Production and reserves

Workings or exploration Mined by small-scale hand methods by 1906. The creek was rich compared to others in the area; 4 men sluiced for 2.5 days in 1899 and recovered $400 or about 20 ounces of gold (Brooks and others, 1901).
Indication of production Yes; small

References