In the early 1970s, seven young adventurers set out to run the last unexplored rivers of Africa, but the death of author Richard Bangs's rafting partner and political turmoil prevented them from reaching their goal. Finally, 23 years later, Bangs and the other surviving expedition members returned to complete what was left undone -- to run Ethiopia's Tekeze.The Lost River is the unforgettable story of the Tekeze expedition, as well as a deeply personal account of Bangs's beginnings on wild rivers and the friendships forged and primal joys encountered while exploring uncharted territory.