Prospect, Inactive

Commodities and mineralogy

Main commodities Ag; Au
Other commodities As; Cu; Hg; Pb; Zn
Gangue minerals jasper; quartz

Geographic location

Quadrangle map, 1:250,000-scale PM
Quadrangle map, 1:63,360-scale A-2
Latitude 55.228
Longitude -160.651
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Disney prospect is located on Unga Island, approximately 1.5 miles northeast of Acheredin Lake and 3 miles west of Baralof Bay (Wilson and others, 1988, locality 35). The map site is at an elevation of 700 feet, about 0.2 mile south-southeast of the center of sec. 22, T. 57 S., R. 75 W., of the Seward Meridian. The location is accurate to within 1,200 feet.

Geologic setting

Geologic description

The Disney prospect consists of a siliceous knob 150 feet in diameter near a strong northeast-trending fault. Quartz and red jasper float are also present. The host rocks are andesite tuffs of the late Eocene to early Oligocene Popof volcanic rocks (Wilson and others, 1995). The tuffs are argillized, chloritized, and locally silicified. Trenching exposed thin quartz and jasper veins as much as 2 feet thick.
The highest precious metal values obtained in grab samples are 0.20 ppm gold and 18 ppm silver. Channel samples contained as much as 0.015 ppm gold (one sample only), 0.2 ppm silver, 171 ppm lead, 106 ppm zinc, 330 ppm arsenic, and 2.8 ppm mercury (Peterson and others, 1982).
Geologic map unit (-160.653053319856, 55.2271669379657)
Mineral deposit model Epithermal gold vein
Age of mineralization Eocene or younger.
Alteration of deposit The tuffs exhibit argillization, chloritization, and local silicification.

Production and reserves

Workings or exploration In 1982 UNC Teton Exploration Drilling Company collected 26 grab and 35 channel samples, and dug 3 trenches totalling 175 feet long.
Indication of production None

Additional comments

This site is located on land patented by, or interim-conveyed to, the Aleut Corporation.


MRDS Number 10308135


Peterson, R.J., Lemmers, J., Handverger, P., Gallagher, J., Pilcher, R., East, J., Macleod, T., Bartels. E., 1982, Geology and precious metals potential Unga, Popof, and Korovin Islands, Shumagin Group, Aleutian Chain, Alaska: UNC Teton Exploration Drilling Company report, 127 p., 5 map sheets, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)
Reporters S.H. Pilcher
Last report date 1/13/2001