The Hadro Swamp was a large swamp located between the town of Volcaneum and Waterfall City on the west side of the Polongo River. The swamp was home to various hadrosaurs, such as Corythosaurus, Parasaurolophus and Lambeosaurus, and humans who lived together in villages alongside the water.[1]


  1. Dinotopia: A Land Apart from Time, p. 59