The Araucanía, La Araucanía Region is one of Chile's 16 first-order administrative divisions, and comprises two provinces: Malleco in the north and Cautín in the south. Its capital and largest city is Temuco; other important cities include Angol and Villarrica.
Chile did not incorporate the lands of the Araucanía Region until the 1880s, when it occupied the area to end resistance by the indigenous Mapuche by both military and political means. This opened up the area for Chilean and European immigration and settlement.
In the 1900–1930 period, the population of Araucanía grew considerably, as did the economy despite recessions striking the rest of Chile.
Wikipedia https://en.wikipedia.org/wiki/Araucanía_Region
Coordinates -38°44'10.54" N -72°35'25.966" E