| Lat / long: | 53.19907, -168.50237 |
| Primary: | Silver, Gold |
| Ore: | Gold, Pyrite |
| Gangue: | Quartz |
| Operation type: | Unknown |
| Development status: | Occurrence |
| Alteration processes: | The volcanic rocks exhibit regional propylitic alteration and local intense argillic alteration and weak silicification. The clay zones contain up to 2 percent pyrite and thin, discontinuous quartz veins. |
| DEP | 10308466 |
| Reference | Nye, C.J., Motyka, R.J., Turner, D.L., and Liss, S.A., 1992, Geology and geochemistry of the Geyser Bight geothermal area, Umnak Island, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigation 92-1, 85 p., 2 map sheets, scale 1/24,000. |
| Reporter | S.H. Pilcher |