Namonuito (Namonweito or Magur) atoll, lies about 170 kilometres northwest of Chuuk Lagoon and is the largest atoll of the Federated States of Micronesia. It is triangular in shape, with the islands of Onoun (formerly Ulul) at the western corner, Pisaras (Piserach) at the eastern corner, Magur at the north and Onari along the northeastern side. Onoun is the largest and most populated islet; the total land area of the atoll is 4.5 km², with a total population of around 1,300. The islands are serviced by a supply ship from Weno.