Cape Wrangell

Cape Wrangell is considered to be the westernmost point of Alaska and all of the United States by direction of travel. It is located on Attu Island, which is situated in the Near Islands. Following this definition of westernmost, an alternative westernmost point would be located on the tiny (ca. 200m diameter) Peaked Island, just off the coast to the west, but because both sit west of the 180th meridian, these two are at times viewed as the easternmost points of the United States.

Map of Cape Wrangell, Alaska, USA