Phae Mueang Phi Forest Park

Phae Mueang Phi Forest Park is a protected geological site in Nam Cham Subdistrict, Mueang Phrae District, Phrae Province, northern Thailand, about 8 km northeast of Phrae city. It is notable for its eroded soil pillars, cliffs and gullies formed over about two million years by natural wind and water erosion. The surreal landscape of reddish-brown earth formations, scattered forest and marked walking trails makes it a distinctive natural attraction managed by the Department of National Parks.

Visitors can expect a compact, arid forest landscape dominated by eroded earth pillars, ridges, cliffs and narrow gullies in reddish-brown and grey tones. Well-marked walking trails, stairways and viewpoints allow exploration of the formations at close range, with interpretive signs and forested surroundings of dipterocarp and bamboo. The site includes a visitor centre, shelters and open viewpoints suitable for sightseeing and photography. The terrain is sandy and uneven with some steps and slopes.

The site preserves Quaternary sedimentary formations estimated to be about 2 million years old, shaped by long-term natural erosion of soft sandstone and siltstone. Established as a Forest Park under the Department of National Parks, Wildlife and Plant Conservation, it is protected for its geological and geomorphological value and for study of erosion processes in northern Thailand.

The name Phae Mueang Phi translates as 'ghost town forest' reflecting local folklore that the eerie, uninhabited eroded landscape resembled an abandoned town of spirits. The site is a well-known natural landmark of Phrae Province and is promoted as a cultural and nature tourism attraction representing the province's distinctive geology.