Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Ọdọ Mmiri Edward dị n'elu 920 mita (3,020 ft), bụ 77 kilomita (48 mi) ogologo site na 40 kilomita (25 mi) n'obosara n'ebe kachasị elu ya, ma na-ekpuchi ngụkọta nke 2,325 square kilomita (898 sq mi), na-eme ka ọ bụrụ 15th-kasị ukwuu na kọntinent ahụ. Osimiri Nyamugasani, Osimiri Ishasha, Osimiri Rutshuru, Osimiri Ntungwe, na Osimiri Rwindi na-enye ọdọ mmiri ahụ mmiri. Ọdọ Mmiri George nke dị n'ebe ugwu ọwụwa anyanwụ na-abanye na ya site na Ọwa Kazinga. Ọdọ Mmiri Edward na-asọba n'ebe ugwu site na Osimiri Semliki n'ime Ọdọ Mmiri Albert.  Ajụjụ: Olee otú ọdọ mmiri ahụ dị?
920 mita