Phu Hin Rong Kla National Park is a national park located in the Loei, Phitsanulok and Phetchabun Provinces of Thailand. The protected area is located in the forested mountains of the Luang Prabang Range close to the border with Laos and is part of the Luang Prabang montane rain forests ecoregion. The park is the base of operations of the long fight of Thai combatant in communist war of Thailand.