Located in eastern Burundi, Buhumuza borders the Burundian provinces of
Burunga,
Gitega and
Butanyerera to the southwest, west and northwest respectively,
Rwanda's
Eastern Province to the north, and
Tanzania's
Kagera Region and
Kigoma Region to the northeast and southeast respectively. Buhumuza's topography is characterized by a series of alternating lowlands and highlands: from north to south, these are the
Bugesera Depression,
Bweru plateau, the
Ruvubu River valley, the
Buyogoma plateau, and the
Moso lowlands.
Ruvubu National Park, Burundi's largest national park, protects the Ruvubu river valley which crosses the province from southwest to northeast. Gisagara Protected Landscape is located in the eastern part of the province near the Tanzanian border. ==History==