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September 29th, 2026
Daily puzzle · Medium · Topographic map
Theme: Salt Flats and Pans of the World
These blinding white basins form where ancient lakes evaporated, leaving vast crusts of salt and minerals behind. Bolivia's Salar de Uyuni is the largest and most photographed, its mirror-like surface a magnet for travelers. Africa's Danakil Depression and Makgadikgadi Pans host their own extreme salt landscapes, while Iran's Dasht-e Kavir and Australia's Lake Eyre round out this tour of the planet's driest, saltiest corners.
1
Salar de Uyuni, BoliviaThe world's largest salt flat, formed from prehistoric lake beds in the Bolivian Andes.
2
Lake Eyre, AustraliaAustralia's largest lake is usually a dry salt pan that rarely fills with water.
3
Danakil Depression, EthiopiaOne of the hottest places on Earth, this basin features colorful sulfur springs and salt pans.
4
Dasht-e Kavir, IranThis great salt desert in central Iran is marked by marshes, mudflats, and salt domes.
5
Makgadikgadi Pan, BotswanaOne of the largest salt pans on Earth, this basin was once part of a massive ancient lake.