Tekeze River

Tekeze River ranks 2nd on the list of the longest rivers in Eritrea. Tekezé River, sometimes known as the Takkaze River, is a large Ethiopian river. It constitutes a stretch of Ethiopia's westernmost boundary with Eritrea for part of its journey. In Eritrea, western Ethiopia, and eastern Sudan, the river is known as the Setit. It is 608 kilometers (378 miles) long, according to Ethiopian Central Statistical Agency documents. The canyon it has carved out is the deepest in Africa and one of the deepest in the world, with depths of over 2000 meters at certain spots.

From the confluence of the Tomsa with the Tekezé at 14°11′N 37°31.7′E to the tripoint between the two countries and Sudan at 14°15′27′′N 36°33′37′′E, the Tekezé River rises in the central Ethiopian Highlands near Mount Qachen within Lasta, where it flows west, north, then west again, forming the westernmost border of Ethiopia and Eritrea. It joins the Atbarah River, a tributary of the Nile, after entering northeastern Sudan at the tripoint. The Tekezé may be the genuine upper course of the Atbarah, given the latter takes the lengthier route before the two rivers' junction.

Length: 608 km