Name: Phae Muang Phi Forest Park
Location: Phrae Province
Status: Geological Park (protected area)
Area: .27 km2
Date established: 1981
Photo: www.doucettj.com

Phae Muang Phi Forest Park is located about 18 km from the town on Highway 101. It is regarded as Thailand's Grand Canyon. Phae Muang Phi is noted for its fantastic sandstone formations. Phae means a shrub area and Muang Phi means city of ghosts in Thai. As it is a large quiet haunted place and nobody lives around there, people will easily lose their way when going inside. However, it is well worth a visit for those who appreciate spectacular natural rock formations.
The Park itself is a small protected area covering the site established on 8 March 1981. The name "forest park" is a category, for there is no forest as such at the site except for a few scattered trees. The protected zone covers an area of 0.27 km². It is actually a shallow depression in the ground where soil and sandstone erosion has produced strange-shape formations like giant mushrooms, cliffs and chimneys. Geologists presumed that the great erosion occurred in the Quaternary period about 2 millions years ago.