Mareb River (or Gash River) (only reaches the Atbarah in times of flood) Obel River Tekezé River (or Takkaze or Setit) Zarima River Ataba River Wari River Qortem Zer'a Tsaliet Agefet Ab'aro Azef River Amblo Korowya Ferrey River Kidane Mihret River May Meqa Graliwdo Giba River Tanqwa Tsech'i River May Qoqah Arwadito Adawro River May Selelo Zikuli River Gra Adiam River, also called Bitchoqo River Zeyi River Inda Sillasie River May Zegzeg May Harena May Sho'ate May Be'ati River Addi Keshofo River May Gabat Inda Anbesa Ruba Bich'i River Hurura Afedena River May Ayni Shimbula Ilala River Qarano River Agula'i River Genfel Sulluh Ch'eqofo River Balagas River Angereb River (or Greater Angereb River) Shinfa River