Unnamed (south tributary to Endicott River)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Fe
Ore minerals magnetite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale JU
Quadrangle map, 1:63,360-scale C-5
Latitude 58.7231
Longitude -135.565
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of approximately 2,000 feet, on the west side of a south tributary of the Endicott River about 2 miles north of the divide with the Excursion River. It is in the NW1/4 section 27, T. 36 S., R. 59 E. of the Copper River Meridian. The location is accurate within 1/2 mile.

Geologic setting

Geologic description

The general area is underlain by deformed and metamorphosed Silurian or Devonian carbonate, clastic and volcanic clastic rocks that have been intruded by Upper Jurassic and Lower Cretaceous granitic and dioritic rocks (Brew and others, 1992). This occurrence consists of pyrite and magnetite in iron-stained greenstone granulite. It is described as a skarn deposit by the U.S. Bureau of Mines (Redman and others, 1989). Redman reports the occurrence was discovered by the U.S. Geological Survey.
Geologic map unit (-135.56684295463, 58.7227582824296)
Alteration of deposit Local iron-staining.

Production and reserves

Workings or exploration Surface examination only.
Indication of production None

References