The Indigenous peoples of Bolivia can be divided into two categories of ethnic groups: the Andeans, who are located in the Andean Altiplano and the valley region; and the lowland groups, who inhabit the warm regions of central and eastern Bolivia, including the valleys of Cochabamba Department, the Amazon Basin areas of northern La Paz Department, and the lowland departments of Beni, Pando, Santa Cruz, and Tarija (including the Gran Chaco region in the southeast of the country). Large numbers of Andean peoples have also migrated to form Quechua, Aymara, and intercultural communities in the lowlands.