Unnamed (northeast Granite Mountain)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Pb
Other commodities As; Bi; Sb

Geographic location

Quadrangle map, 1:250,000-scale ID
Quadrangle map, 1:63,360-scale A-5
Latitude 62.35399
Longitude -156.68933
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on the north end of Granite Mountain at an elevation of about 1,800 feet. It is about 0.8 mile north of hill 2555 and about 0.6 mile east-southeast of the center of section 9, T. 26 N., R. 40 W., of the Seward Meridian. The location is accurate.

Geologic setting

Geologic description

This occurrence is at the north end of Granite Mountain about 0.6 mile north of the hornfels aureole of the Granite Mountain pluton. The rocks in the area are sandstone and shale of the Upper Cretaceous, Kuskokwim Group (Miller and Bundtzen, 1994; Miller, Bundtzen, and Gray, 2005). This occurrence is based on a grab sample of what was originally considered to be barren Kuskokwim Group sedimentary rocks. The grab sample contained 500 parts per billion (ppb) silver, 200 parts per million (ppm) lead, 10.0 ppm bismuth, 100 ppm arsenic, and 12 ppm antimony (McGimsey and others, 1988).
Geologic map unit (-156.691707583182, 62.3533256850859)

Production and reserves

Workings or exploration Samples were collected by the U.S. Geological Survey and Alaska Division of Geological and Geophysical Surveys in the 1980s (McGimsey and others, 1988).
Indication of production None