Unnamed (north of Endicott Lake)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals bornite; secondary cu minerals

Geographic location

Quadrangle map, 1:250,000-scale JU
Quadrangle map, 1:63,360-scale D-6
Latitude 58.8437
Longitude -135.6763
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 3,150 feet, approximately 1 mile north of Endicott Lake and 1 mile northeast of Endicott Gap, in the SW1/4 section 12, T. 35 S., R. 58 E. of the Copper River Meridian. This is location J022 of Wells and others (1986). The location is accurate within 1/4 mile.

Geologic setting

Geologic description

The area consists of 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). Cobb (1978 [78-374]) reports veinlets of bornite, secondary Cu minerals, and epidote associated with siliceous volcanic rocks.
Geologic map unit (-135.678161053904, 58.8433431269948)
Alteration of deposit Oxidation of copper minerals.

Production and reserves

Indication of production None