Green Mountain

Prospect, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale FB
Quadrangle map, 1:63,360-scale D-1
Latitude 64.967
Longitude -147.5
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Green Mountain prospect is located in the SW1/4SW1/4 sec. 26, T. 2 N., R. 1 E., Fairbanks Meridian. This deposit is on the west side of Rose Creek, about 1,000 feet west of the mouth of Evening Star Creek. It is about 4.1 miles west-southwest of the top of Gilmore Dome. The prospect is included in locality 30 of Cobb (1972 [MF 410]).

Geologic setting

Geologic description

A small open cut exposes a 15-foot-wide quartz vein (Chapin, 1914, B 592-J, p. 321-355). An adit driven to crosscut the vein intersected a brecciated mass of schist with small quartz veins; free gold was panned here from crushed rock (Chapin, 1914, B 592-J, p. 321-355). This prospect lies on the western edge of a Cretaceous granite that intrudes two units of the Fairbanks Schist that are composed of (1) quartz-muscovite schist, quartzite, and chlorite-quartz schist, and (2) amphibolite, magnetite-rich biotite schist, quartz schist, and marble (Newberry and others, 1996).
Geologic map unit (-147.50243640544, 64.9665749511533)
Mineral deposit model Schist-hosted gold-quartz vein

Production and reserves

Workings or exploration Workings consisted of a small open cut and an adit (Chapin, 1914, B 592-J, p. 321-355).
Indication of production Undetermined