Quiapo (Mapudungun; cuya=lesser grison and mapu=land) is a place in Arauco Province of Chile that is 25 kilometers to the southwest of Arauco and about 25 kilometers to the north and east of the port of Lebu to the east of the Bahia del Carnero and 6.4 kilometers west of the small town of Villa Alegre. It was a low mountainous and thickly wooded area, that contained among its contours arable lands that had the same name. It is also the location where two streams come together to form the headwaters of the Quiapo River.