This thesis studies the components and phases of the socioeconomic and territorial evolution of the Jari river region, located at the north of the Brazilian Amazon, by identifying its different transformation processes and contemporary spatial structures. Longtime left aloof from national population and development dynamics, the region experiences a two-step economic and social evolution in the XX century: A first occupation, at the beginning of the century, that was conditioned by the exploitation of natural resources (rubber, Brazil nut) and led to the establishment of a "latifundium" covering about 2 million ha; and a second, more important occupation at the end of 1960ies by the an American businessman and multimillionaire D.K. Ludwig. ...