Lam Nam Nan National Park

Lam Nam Nan National Park () is a national park in Thailand's Phrae and Uttaradit provinces. The park is home to rugged mountains and the reservoir of the Sirikit Dam.
Geography.
Lam Nam Nan National Park is located about north of Uttaradit town in the Mueang district of Phrae Province and the Tha Pla and Nam Pat districts of Uttaradit Province. The park's area is .
The highest point is the Phu Phaya Pho peak in the Phi Pan Nam Range. The Sirikit Dam, impounding the Nan River, forms a large reservoir in the park. The park's streams also feed the Yom River, a tributary of the Nan.
Attractions.
The Sirikit Dam reservoir is a popular boating recreation spot and features a number of small islands and reefs. Choeng Thong waterfall is a year-round waterfall located on the Phrae side of the park. Phu Phaya Pho mountain offers sweeping views of the surrounding mountains and forested landscape.
Flora and fauna.
The park features numerous forest types, including deciduous, deciduous dipterocarp and dry evergreen forest. Tree species include teak, "makha", "Xylia xylocarpa", "Dalbergia oliveri", "Pterocarpus macrocarpus", "Shorea obtusa", "Prunus cerasoides", Burmese ebony and Siamese sal.
Animal species include Asiatic black bear, Malayan sun bear, serow, sambar deer, macaque, porcupine, palm civet and wild boar. Bird life includes malkoha, coucal, coppersmith barbet and bulbul.