Lum Num Nan National Park located in Muang District, Phrae Province, and Thapla District, Nampard District, Uttaradit Province, and consists of complicated mountain range covered by forest, such as hill evergreen forest, dry evergreen forest, mixed deciduous forest and deciduous forest, which is higher than the highest water-level of Sirikit Dam. The area is the source of Yom River in Phrae Province and Nan River in Uttaradit Province, and about 999.15 squares kilometers or 624,468 Rais (all includes 203 squares kilometers of Sirikit Dam). It has been declared a national park since September 30, 1998. The area is the source of water of Nan River and Sirikit Dam, and consists of productive forest, such as mixed deciduous forest, deciduous forest and hill evergreen forest, which has economically valuable plants, and many kinds of animals. Chieng Thong Waterfall Chieng Thong - Kiew Kien Road Phu Phaya Phor Sirikit Dam Reservoir |
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