Bolivia

An enormous diversity of ecological zones are represented within Bolivia's territory. The western highlands of the country are situated in the Andes Mountains and include the Bolivian Altiplano. The eastern lowlands include large sections of Amazonian rainforests and Chaco. The highest peak is Nevado Sajama at 6,542 metres (21,463 ft) located in the department of Oruro. Lake Titicaca is located on the border between Bolivia and Peru. The Salar de Uyuni, the world's largest salt flat, lies in the southwest corner of the country, in the department of Potosí.

en.wikipedia.org/wiki/Bolivia