Moist evergreen forest, which can be found in the valleys and in damp gullies and riversides. Hill evergreen forest and lower montaine forest. Over 300 species of orchids can be seen within the park. Khao Luang is the only place in the world where some of these can be found. There are no fewer than 327 species of animals living in Khao Luang, some of these include; Malayan tapir, Sumatran serow, pig-tailed macaque, Asiatic brush-tailed porcupine, clouded leopard, barking deer, sambar deer, binturong, panther, tiger, wild pig, banded langur and spectacled langur. Bird species include black eagle, red junglefowl, great argus pheasant, crested fireback pheasant, white-crowned hornbill, bushy-crested hornbill, great pied hornbill, helmeted hornbill, red-crowned barbet and sunbirds.