This study was undertaken to establish the impact of the Alaska-British Columbia boundary on socio-economic development in the boundary region. The impact was studied in three stages: (1) an historical analysis to determine the raison d'etre of the boundary and the consequent adaptations which have been made to its resulting barrier functions, (2) a contemporary analysis of the boundary as a constraint on the transportation routeways which it divides and (3) an analysis of a future problem which the situation of the boundary is expected to create in the division of authority over the international rivers which traverse the boundary. It was found that historically the boundary was established as a result of the extention of the Russian and ...