Rose Atoll, sometimes called Rose Island or Motu O Manu by people of the nearby Manu'a Islands, is an oceanic atoll within the U.S. territory of American Samoa. It is an uninhabited wildlife refuge. It is the southernmost point belonging to the United States. The land area is 0.214 km² (52.8 acres). The total area of the atoll, including lagoon and reef flat amounts to 5 km². Just west of the northernmost point is a channel into the lagoon, about 40 m wide.