Boulder Creek

Prospect, Inactive

Commodities and mineralogy

Main commodities Au; Th; U
Other commodities Au
Ore minerals gold; uranothorianite

Geographic location

Quadrangle map, 1:250,000-scale CA
Quadrangle map, 1:63,360-scale B-5
Latitude 65.39
Longitude -161.06
Nearby scientific data Find additional scientific data near this location
Location and accuracy This placer prospect is on Boulder Creek near the intersection of a tractor trail marked on Candle B-5 quadrangle. The site is about a mile above the mouth of the creek, in section 23, T. 1 S., R. 12 W., of the Kateel River Meridian. Cobb, 1972 (MF-389), location 36.

Geologic setting

Geologic description

Stream and bench gravels have been prospected or placer mined for gold. In 1947, uranothorianite was collected from concentrate samples (Gault and others, 1953).
Geologic map unit (-161.062636407964, 65.3893270393394)
Mineral deposit model Placer Au-PGE (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Pan concentrate samples collected and analyzed for uranium content by U.S. Geological Survey (Gault and others, 1953).
Indication of production Undetermined

Additional comments

Stream gradient approximately 100 feet per cubic mile.

References