Чанкадорас Ренбах. Плазас Чанкадорас. Great Papuan Plateau Wikipedia. The Great Papuan Plateau is a karst plateau in the Southern Highlands Hela and Western Provinces of Papua New Guinea It is bordered the upper stretches of the Kikori River and the Strickland River on the east and west respectively and the Karius Range the southern edge of the highlands ...