2020 Map of Unimak A-5 NE

About this map

The coastal terrain of this remote Aleutian island is defined by dramatic headlands and deep-water inlets where the Bering Sea meets the Pacific Ocean. On the western edge of the landmass, Seredka Bay and Cross Bay provide significant indentations in the coastline, separated by the prominent reach of Cross Point. The topography rises steeply to peaks such as Slukom-tugumaga and Agan, reflecting the volcanic origins of the chain. To the south, the isolated Tangik Island sits off the coast, a detached landmass within the surrounding currents. This survey by the U.S. Geological Survey captures the intricate shoreline between Akun Bay and the southeastern point at Round Head, documenting the maritime landscape of the Aleutians East Borough before the most recent topographic updates.