evidence: Swains Island is the U.S. Territory of American Samoa's most northern island. Geologically, it is part of the Tokelau volcanic chain. It is about 320 km north of the Samoan hot spot track. It is about 2.4 km long and has a lake with salty water that can't reach the ocean. A very small atoll called Swains, which is also called Olohega, is considered to be part of American Samoa. It is part of the Tokelau group, but the Jennings family owns it and the US government runs it. Captain William Hudson, who was in charge of the island in 1841, gave it the name "Swains Island." American Samoa is the only U.S. territory south of the equator. Swains Island is the northernmost island in American Samoa. American Samoa is made up of two coral atolls, Rose and Swains, and five volcanic islands, Tutuila, Aunu'u, Tau, Ofu, and Olosega. 340 km northwest of Tutuila is the town of Swains.