[2] Park mountains form part of the Khun Tan Range and are an important water source for the surrounding area.

[1][4] Chae Son hot spring is an area of sulfurous pools from nine boreholes emitting waters at temperatures around 73 °C (163 °F).

Tree species include Afzelia xylocarpa, Chukrasia velutina, Toona ciliata, Diospyros, Lagerstroemia calyculata, Dipterocarpus alatus, Dipterocarpus obtusifolius, Pinus latteri, Pinus kesiya, Pterocarpus macrocarpus, Shorea obtusa and Shorea siamensis.

[1] Animals in the park include Phayre's leaf monkey, sambar deer, Asian golden cat, Southwest China serow, northern red muntjac (Muntiacus muntjak vaginalis), chevrotain, Siamese hare, Sunda flying lemur, Malayan porcupine, Finlayson's squirrel, wild boar and northern treeshrew.

[5] Bird life in Chae Son includes white-rumped shama, red junglefowl, woodpecker, bulbul, barbet, tailorbird, green pigeon, warbler, babbler and dove.