Umboi (also named Rooke or Siassi) is a volcanic island between the mainland of Papua New Guinea and the island of New Britain. It is separated from New Britain by Dampier Strait and Huon Peninsula, New Guinea Island by Vitiaz Strait. It has an elevation of 1,548 metres (5,079 feet).
Space Shuttle image of Umboi Island (north to upper right).
|Elevation||1,548 m (5,079 ft)|
|Prominence||1,548 m (5,079 ft)|
|Location||Papua New Guinea|
|Mountain type||Complex volcano|
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