Which landmark in Bolivia is the world’s largest salt flat?

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Salar de Uyuni in Bolivia is the world’s largest salt flat.

The immense plain covers about 10,000 square kilometres in the Altiplano, at an elevation of roughly 3,656 metres above sea level. It formed when prehistoric lakes dried, leaving a thick crust of salt and minerals across the basin.

During the dry season, the surface is a dazzling geometric mosaic of polygonal salt patterns. After a thin layer of water covers the plain, the surface can reflect the sky so clearly that visitors call it the world’s largest natural mirror, although this appearance is seasonal and weather-dependent.

The salt flat also contains significant lithium resources beneath its crust. Isla Incahuasi, an island covered with giant cacti, is a well-known landmark within the salar. It is distinct from Bolivia’s smaller Salar de Coipasa.

Source: Wikipedia · fact-checked Sept. 2026

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