Phu Hin Rong Kla National Park

Phu Hin Rong Kla National Park is a 307 sq km protected area on the forested mountain plateau at the junction of Loei, Phitsanulok and Phetchabun provinces, with its northern section in Dan Sai District, Loei. Established in 1984, it is notable for its cool climate, pine forests, rock formations, waterfalls and viewpoints, and for preserved historic sites from its period as a former insurgent base, now maintained as an educational memorial park.

Visitors can expect a cool mountain plateau landscape at about 1,200 meters elevation with pine forests, grasslands, sandstone rock formations, cliffs and waterfalls. Areas to explore include viewpoints such as Pha Chu Thong, Lan Hin Pum and Lan Hin Taek, waterfalls including Man Daeng and Romklao-Pharadon, and preserved historic sites such as the former Political and Military School, air-raid shelters and field hospital. Trails, camping areas and a visitor centre are available.

The Phu Hin Rong Kla plateau served as a base for the Communist Party of Thailand from 1968 to 1982. After the insurgency ended, the area was declared Thailand's 48th national park on 26 July 1984, covering 307 sq km. Remnants such as the Political and Military School, field hospital, air-raid shelters and water wheel are preserved within the park as educational historic sites.

The park area reflects mountain forest heritage of northern Thailand and includes former Hmong settlement areas. Preserved sites are maintained for education about local history and forest conservation.