Digul River

The Digul River () is a major river in South Papua province, Indonesia, on the island of New Guinea. It is the fourth longest river in New Guinea after Sepik, Mamberamo, and Fly. With a total length of and a drainage basin of .

==Course== The river originates in the central part of the island, on the southern side of the Maoke Mountains (Digul or Star Mountains), which rise above sea level at 4,700 m. After leaving the mountainous section, it cuts through lowland swamps in a south-southwest direction and then flows by delta into the Arafura Sea, across Dolak Island. Its marshy, swampy floodplain is lined with reed beds. As there are no accessible and developed roads in the area, the river is still the only transport route across the marshes to the fertile hills and mountains in the interior of the island. It is navigable by larger boats from Tanahmerah (320 km) and by smaller boats from the foot of the mountains. This swampy navigable stretch is often referred to as Boven-Digul. Its length as the crow flies from its source to its mouth is relatively short, but it follows a very winding course over flat land to the sea.