The Mbirurume (also called Bilirume, Biruruma, Birurume, Bitirume) is a river in western Rwanda that is a tributary of the Nyabarongo River.
The Mbirurume rises in forested country in southern Rwanda to the east of the Congo-Nile Divide.[1]
It originates in the extreme north of the Nyungwe National Park, in the Nyamagabe District.
It flows in a northeast direction, entering Karongi District and passes Mukungu to the west, then runs in a northeast direction along the border between Nyamagabe and Karongi districts.
It then turns southeast shortly before meeting the Mwogo River from the left.[2][3]
The combined rivers form the Nyabarongo River, which flows northward along the eastern slopes of the Nile-Congo divide.[1]
