evidence: The Congo River drains a total watershed area of 3,690,750km2, covering all of the Democratic Republic of Congo (DRC), as well as parts of Congo-Brazzaville, Cameroon, the Central African Republic (CAR), Burundi, Tanzania, Zambia and Angola.2At the eastern end of the Congo River Basin, swamps and lakes play an important role in regulating the flow of the Congo River. [...] The Congo River is tidal all the way to Boma, some 100 km from the mouth of the river. It merges into the Atlantic Ocean between Banana Point, DRC, and Sharks Point, Angola, from where it continues its course underwater. The riverbed continues offshore with an 800 km-long submarine canyon that reaches a depth of 1,220 m. 5 ----------------------------------------- 1 Wikipedia. Accessed 08/11/05 2 Wikipedia. Accessed 08/11/05 3 Mongabay.com. Rivers, Streams and Creeks.http://www.mongabay.com/0603.htm Accessed: 07/11/05 4 The Columbia Electronic Encyclopaedia. Congo, river, Africa: Courseon Fact Monster. © 2000–2005 Pearson Education, publishing as Fact Monster.08 Nov. 2005 5 The Columbia Electronic Encyclopaedia. Congo, river, Africa: Courseon Fact Monster. © 2000–2005 Pearson Education, publishing as Fact Monster.08 Nov. 2005