Phae Mueang Phi Forest Park

In northern dialect "phae" means scrub or open forest, not the animal, and "mueang phi" conveys a quiet, eerie place — so the name evokes a spooky open woodland. Villagers, especially from Thung Hong, have long held the site sacred.

Folk legend tells of an old woman who went into the forest for vegetables and bamboo shoots and found pits of silver and gold. She filled her baskets, but the guardian spirit would not let her take it, so she wandered lost; when she returned with villagers the gold had gone, leaving only footprints that ended at these pillars. TrueID names her Ya Sum, and the villagers named the place after the event.

Geologically, a 2024 Journal of Lanna Societies paper citing the Department of Mineral Resources (2001), and ONEP's database, agree that these are loose Quaternary sediments no more than about 2 million years old; a 2024 DNP post says "at least 15 million years", probably confusing them with older Tertiary rocks of the Phrae basin. Grey clay and fine sand lie below, with gravel and sand cemented by iron and manganese above. Rain and streams wore away the softer layers, leaving the hardened layers as caps and creating mushroom shapes.

The landform is a collapsed basin like an upturned pan, with knolls and pillars inside. The truly eroded zone covers only about 5 rai along both banks of a small stream. Pillar heights vary widely between sources, so "several metres" is fair; visitors often liken it to a miniature Cappadocia.

Phae Mueang Phi was declared a forest park on 4 March 1981 according to Channel 8 news (2016) and a 2024 academic paper; English Wikipedia says 8 March and LoveThailand 2 March. No Royal Gazette notice has been found — forest parks may be created by departmental order. On 7 November 1989 the Cabinet listed it as a natural site worthy of conservation, according to ONEP's database. It covers about 167 rai and is managed by the national parks department through Protected Area Regional Office 13 in Phrae.

In 2011 ONEP chose Phae Mueang Phi as a pilot site for its National Heritage project, and it regularly hosts geography study visits by agencies and schools. Research in 2024 found that although public and private bodies promote activities, local residents have little part in its development.

A nature trail has interpretive signs on geology and forest, and Lonely Planet notes newly added walkways and viewpoints. The surrounding forest is low dry dipterocarp with few trees, so the trail has almost no shade.

At the entrance are a large car park, pavilions and stalls selling local food such as grilled chicken, som tam and sticky rice, plus souvenirs. No public transport reaches it; drive yourself or charter a songthaew for about 600–800 baht return.

A DNP post gives opening hours of 08:00–17:00 daily, while other sources say 08:30–16:30. Dated 2025 reviews report fees of 20 baht for adults, 10 for children and 30 per car, so older "free" listings are outdated. A car park and campground were added in 2016. Check the park's page and carry cash.

The best light is early morning (about 08:00–10:00) and late afternoon (about 15:30 to closing), when low sun reveals the layers; midday is hot and shadeless. Because the park may close at 16:30, true sunset may fall after hours. November to February is most comfortable; in the rains the sandy ground is slippery and in the dry season dusty. Allow 45–60 minutes.