Semliki River originates from Lake Edward found in Kasese District in Western Uganda. Lake Edward is found in Queen Elizabeth National Park on the border of Uganda and the Democratic Republic of Congo. The river flows northwards and empties into Lake Albert located in the Hoima District in Western Uganda at 1.2225°N 30.5038889°E. The river travels 230km along the Rwenzori Range and the border between Uganda and Democratic Republic of Congo from Lake Edward to Lake Albert
The river as it flows from Lake Edward to Lake Albert is joined by a number of small rivers originating from slopes of the Rwenzori mountains.
The river’s delta is choked with ambatch, a fast-growing thorny tree. and papyrus.
The Semliki has built up a considerable alluvial plain, part of which is included in the Virunga National Park. The river basis is a home of animals including elephants, hippopotamuses, crocodiles, and various kinds of antelopes.
The shifting border
Semliki River forms the boundary between Uganda and the Democratic Republic of Congo. There is concern on the part of Uganda about the shifting border between Uganda and the Democratic Republic of Congo as a result of soil erosion. The Bundibugyo district leaders say that the river has shifted almost one kilometer into Uganda.