This great 2218-sq-km remote salt desert, northwest of the Salar de Uyuni at an elevation of 3786m, was part of the same system of prehistoric lakes as the Salar de Uyuni – a system that covered the area over 10,000 years ago. The 4WD-only road to the Salar de Coipasa is extremely poor and the salt is thin so it’s easy to get stuck, especially during the rainy season