 It lies at the Atka Pass northwest of the western tip of Atka Island and east of Great Sitkin Island.It is at 52.177° N latitude and 175.508° W longitude, with a summit elevation of 314 m (1030 ft.) Kasatochi Island has a land area of 1.9503 sq mi (5.051 km2) and currently does not support any consistent human population.Kasatochi Island has a unique landscape that makes it an ideal home for many types of species.