Phu Kradueng is a giant, heart shaped, sandstone mountain in northeastern Thailand.
It is located in a region more commonly known as Isan.
Phu Kradueng means "Bell Mountain" in Thai for the bell-shaped peak that makes up the summit.
It consist of a lone, steep-sided mountain, which rises out of a flat plain that covers over 134 square miles and is crowned by a 23 square mile plateau.