ウユニ
The province is situated in the salt flats of the southern Altiplano, more than 65% of the province being covered by Salar de Uyuni. Salar de Uyuni is situated at an average level of 3,657 m amsl, the highest point of the province is Tutuni "(Alto Totoni)" (5,740 m) in the Cordillera Sillaguay on the Chilean border. The climate is that of an arid high mountain region, with yearly precipitation of below 200 mm, even less than 100 mm in the extreme west. Average daily temperatures are 0 to 5 °C all over the year.