[4] Phu Ruea mountain is 1,365 metres (4,478 ft) high and experiences some of Thailand's coldest temperatures.

Phu Ruea means 'boat mountain', a name inspired by the shape of a cliff at the peak.

[5] The peak of Phu Ruea offers views of the Mekong and Hueang Rivers and Laos.

[2][7]: 127–128 Animal species include sun bear, northern red muntjac, sambar deer, dhole, black giant squirrel and Siamese hare.

Bird life in the park includes red junglefowl, Siamese fireback, yellow-vented bulbul, greater coucal, plain prinia, coppersmith barbet, Asian barred owlet as well as brown-throated sunbird.