Ubundu, formerly known as Ponthierville or Ponthierstad, is a city located in Tshopo District in the Democratic Republic of the Congo. It is on the Congo River, just above the Boyoma Falls. The section of the Congo River is not navigable from here to Kisangani, hence a portage railway was built to link Ubundu to Kisangani.
In 1951, Katharine Hepburn, Humphrey Bogart and the crew of the film The African Queen arrived in Ubundu by train for filming in the jungle. In those days, the town was described as a "pretty colonial outpost."[1].
The area saw some of the worst fighting during the Second Congo War. Around 2003, the town had no electricity, and very few facilities, and was considered a very dangerous place. [2]