During the Republican era in the nineteenth and twentieth centuries, the Chilean state must promote a process of settlement and integration of their individual territories, the national life. But its location in the pre-Andean sector the Lake Ranco was not an objective considered in this process whose attention was focused on the longitudinal valley and the coastal sector. Still, in 1846 the cartographer Bernardo Phillippi, drew up a map of the province of Valdivia, made at the time by the departments of Valdivia and Osorno.