Located in Loei, one of the coolest provinces of Thailand. It is rugged mountain range and also the headwater of many rivers of Loei. Phu Reua is the highest peak of 1,365m above sea level. At the top, it is viewpoint that you can panoramically see Heuang and Khong Rivers.More than half of the top of Phu Reua is covered with low shrubbery, grasslands and strangely formed rock formations. Due to the cool climate the area is rich in orchid species which flower throughout the year. Pha Lom Noi is good point to see the sun rise.

Topography
It is a high mountain comprised of sandy and granite. The highest peak is Phu rea. It is 1,365 meters high from the sea level. The other important peaks are Phu sun, which is 1,035 meters high from the sea level, and Phu ku, which is 1,000 meters high from the sea level. It is the water source of many creeks and rivers such as Huay Nam Darn, Huay Bong, Huay Kiengna, Huay SaiKwao, Huay Tiew, and Huay Pa which is the source of Huay pai waterfall.

Climate
It is in Loei where is the coldest city in Thailand, and high above the mountain, therefore it is cool a whole year especially in the winter season. There is hails ‘Mae kaning” therefore the tourists need to be well prepared.

Flora and Fauna
Phu-rea has many kinds of plants and wild lives such as wild roses, moss, fern, wild orchid, bear, barking deer, boar, hyena, monkey, squirrel, wild fowl, rabbit, turtle, as well as birds.