Umugezi wa Rurubu
Umugezi wa Ruvubu (witwa Rurubu na Ruvuvu ) ni uruzi rwo muri Afurika rwagati amazi yawo akusanyiriza mu gice cya kure, mu majyepfo y'ikibaya cya Nili . Uburebure bwa kilometero 416 kandi ifite ikibaya cya mazi ya kilometero 14,000. Irazamuka mu majyaruguru yu Burundi, hafi y’umujyi wa Kayanza hanyuma ikora umukororroba hepfo yerekeza mu Burundi, igahuzwa n’umugezi wa Ruvyironza hafi ya Gitega . Kuva aho, unyura mu majyaruguru y'uburasirazuba, unyuze muri parike y'igihugu ya Ruvubu, kugera ku mupaka wa Tanzaniya . Nyuma yo kwambuka umupaka, Ruvubu yambuka neza muri Tanzaniya, mbere yo kwinjira mu ruzi rwa Nyabarongo ku mupaka wa Tanzaniya - u Rwanda hafi y’isumo rya Rusumo, kugira ngo agire uruzi rwa Kagera .

Ruvubu yakuye izina ryayo mu ijambo rya Kirundi risobanura imvubu, imvubu, kubera ko uruzi rutuwe n'abaturage benshi b'imvubu. 
Uburundi