The Bashilo River is located in Ethiopia. Known for its canyon, which one source describes as almost as extensive as the canyon of its parent the Abay, also known as the Blue Nile, the river originates just west of Kutaber in the Amhara Region. Flowing first in a northwesterly direction to where the Tergiya empties into it, it then heads southwest to its confluence with the Abay. Its drainage area is about 13,242 square kilometers in size, covering portions of the Semien Gondar, Semien Wollo and Debub Wollo Zones. Its tributaries include the Checheho, and the Walano.