The unique, intact tribal cultures of the remote Omo Valley are all threatened by 3 new dams which the Ethiopian Government is building to supply hydro-electric power to Ethiopia's major cities. The dams will reduce the flow of the Omo River to one fifth of its volume and remove the flood plain which is so valuable to the Omo tribes for Agrarian purposes. Mass forced migration and the break-up of these ancient cultures is likely to be the result.