Doi Phaklong National Park is located in Long District, Prae Province. It once was Suan Hin Maharaj Park that was built for honoring His Majesty the King in the celebration of his 5th cycle birthday. At present it is a national park being prepared for the formal declaration. Doi Phaklong is the source of Yom River. Its outstanding spot is Phukhao Hin Pakarang (the coral mountain) or Rong Hin Taek (the cracked rock channel) happening from the hollowing and movement of the face of earth. The area is wonderful and beautiful scenery to see. And there are many sightseeing spots awaiting the travelers throughout the year. This gains more and more tourists year after year.

Topography
The landscape is of high steep mountains laying from north to south. Some areas are plains on mountains with stones naturally coming out from the ground.

Climate
According to its high mountain ranges geography and its diversity of plant, the weather climate of Doi Pha Gong National Park is generally cold particularly in Winter Season which average temperature is 8-12 degrees Celsius. In Summer Season, average temperature is about 30 degrees Celsius. Rainy Season started from May to October which everyday is often raining.

Flora and Fauna
Most of the area is mixed deciduous forest inserted with dry evergreen forest and Dipterocarp forest There are rare and nearly extinct wild animals e.g. mountain goat, barking deer, black bear, warthog and various birds. In the streams in the forest, there are many kinds of small fish, reptile and amphibian found.