What is now the altiplano region of Peru and Bolivia (as well as part of northern Argentina and Chile) was known as Collasuyu (often seen as Kollasuyu, Qullasuyu and other variations) or the southern quarter of the Inca Empire. Part of the Qhapaq Ñan, or Great Inca Road) ran through highland Bolivia, and many other pre-Columbian trails (both Inca and dating from the earlier Tiwanaku empire) still survive and can be explored.
