Unnamed (southerly tributary of upper Black Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Hg
Other commodities As; Sb

Geographic location

Quadrangle map, 1:250,000-scale ID
Quadrangle map, 1:63,360-scale B-1
Latitude 62.48964
Longitude -156.23685
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is along a tributary of the Black River at an elevation of about 650 feet. It is about 3.2 miles north of VABM 2073/Hiblac and about 0.1 mile northeast of the center of section 25, T. 28 N., R. 38 W., of the Seward Meridian. The location is accurate.

Geologic setting

Geologic description

This occurrence is of an apparently barren sandstone of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). A grab sample was taken for background metal values; it contained 460 parts per billion (ppb) mercury, 30 parts per million (ppm) arsenic, 20 ppm antimony, and 100 ppb silver (McGimsey and others, 1988).
Geologic map unit (-156.239213897372, 62.4889909523235)

Production and reserves

Workings or exploration Samples were collected by the U.S. Geological Survey in 1986 (McGimsey and others, 1988).
Indication of production None