The name of the mountain comes stems from its silhouette looks like a large bell (Thai: กระดึง; kradueng).
There is also a local legend that a mysterious bell sound, believed to be the bell of Indra, can be heard in the area of the mountain.

Phu Kradueng seen from above is heart-shaped.
It has a relatively flat plain on its top, sloping slightly to the north.
The summit, in the southwestern part of the plateau, is inconspicuous.
The western, southern, and eastern edges of the mountain have a fairly regular shape and are formed by abrupt sandstone cliffs, while the northwestern corner is deeply indented, containing a number of streams and seasonal waterfalls.

Geologically, Phu Kradueng is formed by Jurassic and Cretaceous sandstone.
Large parts of the mountain are covered in mixed evergreen forest.
At the base of the mountain deciduous Dipterocarp forest dominates.
Dry evergreen forest follow hill evergreen forests with bamboo clumps at higher altitudes.
There are wide stretches of grasslands mixed with pine trees at the top.
The name of the mountain comes stems from its silhouette looks like a large bell (Thai: กระดึง; kradueng). There is also a local legend that a mysterious bell sound, believed to be the bell of Indra, can be heard in the area of the mountain.
Phu Kradueng seen from above is heart-shaped. It has a relatively flat plain on its top, sloping slightly to the north. The summit, in the southwestern part of the plateau, is inconspicuous. The western, southern, and eastern edges of the mountain have a fairly regular shape and are formed by abrupt sandstone cliffs, while the northwestern corner is deeply indented, containing a number of streams and seasonal waterfalls. 
Geologically, Phu Kradueng is formed by Jurassic and Cretaceous sandstone. Large parts of the mountain are covered in mixed evergreen forest. At the base of the mountain deciduous Dipterocarp forest dominates. Dry evergreen forest follow hill evergreen forests with bamboo clumps at higher altitudes. There are wide stretches of grasslands mixed with pine trees at the top.
Phu Kradueng