Auyán Tepui also spelled Ayan, is a tepui in Bolívar state, Venezuela. It is the most visited and one of the largest (but not the highest) tepuis in the Guiana Highlands, with a summit area of 666.9 km2 (257.5 sq mi) and an estimated slope area of 715 km2 (276 sq mi). The uneven, heart-shaped summit plateau of Auyán-tepui is heavily inclined, rising from around 1,600 meters (5,200 ft) in the northwest to a maximum of 2,450 m (8,040 ft) in the southeast.  It is incised from the north by a vast valley, the Cañón del Diablo (Devil's Canyon), formed by the Churún River.

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