Water Resources in Sudan August 31, 2017 The source of the Nile is in the Nyungwe Forest in Rwanda. From there, it travels northwards for 6,718km, making it the longest river in the world Tags: Blue Nile - Ground Water - Haffir - Khor - Nile River - Non-conventional Water Resources - Rainfall - Sudan - Surface Water - Water - Water Availability - Water Resources - Wetlands - White Nile