is the figure of Blue Nile Basin topography: In geology term, the Blue Nile basin is located in Northwestern Ethiopian Plateau. On the east side, it is bounded by Main Ethiopian Rift along to the South East. On the north side, it is bounded by Axum-Adigrat lineament and by Ambo lineament on the south side. They are cities that located in Amhara Region, Ethiopia. The basin contains Early–Late Oligocene and Quaternary volcanic rocks overlying around 1400m thick section of Mesozoic sedimentary rocks