the correct answer is - indians.
unlike the other andean nations like ecuador, bolivia, and peru, chile is a country where the ethnic origin of the population is almost entirely based on people that have come from other parts of the world.
little less than 95% of the population of chile has european or other non-indigenous origin, while the total population that has indigenous origin is accounting for for little more than 5%.
the biggest ethnic group of indigenous origin are the mapuche, with the aymara being the second biggest.
the border separates sonora and chihuahua is natural boundary