[3] The name "kradueng" (กระดึง), or "krading" (กระดิ่ง) in the local dialect of Loei Province, can be translated as "rakhang yai" (ระฆังใหญ่), meaning "large bell".

Phu Kradueng mountain, made up of Jurassic and Cretaceous sandstone formations, takes the form of a mesa towering some 1,000 meters above the surrounding valleys.

Sloping slightly to the north, its western, southern, and eastern edges are fairly straight and formed by abrupt sandstone cliffs, while the northern part is deformed in a more irregular shape, containing a number of streams and (seasonal) waterfalls.

The park occupies an area of 217,576 rai ~ 348 square kilometres (134 sq mi)[4] Legend has it that a hunter tried to hunt a bull that fled to the top of a mountain in Srithan sub-district.

The Royal Forest Department therefore started a survey to establish a national park in Phu Kradueng, Loei Province for the first time, but due to the shortage of budget and officials, little went and stopped.

On October 7, 1959, the Cabinet passed a resolution to designate 14 forests in various provinces as a national park in order to permanently conserve natural resources for the common benefit.

Phu Kradueng Subdistrict Wang Saphung District Loei Province is a national park.

[6] The flat area on the top of the mountain is approximately 60 square kilometers (37,500 rai), resembling a bonfire or heart shape when viewed from above, with the tip of the leaf in the southeast and the inner part in the northeast.

The grass fields support a variety of flowers, such as Hydrocera triflora, Torenia fournieri and marigolds.

[7]: 121 Phu Kradueng, with its variety of forest types and vegetation, provides abundant food for wildlife community, including elephants, bears, sambar deer, barking deer, serow, squirrels, foxes, white-handed gibbons and crab-eating macaques.