Doi Phu Kha National Park park is named after "Chompoo Phu Kha" ( "Bretschneidera sinensis"), a tree with attractive pink flower bunches, which together with "Caryota gigas" and "Acer wilsonii", are rare species of plant which in Thailand can be found only in this park. There are natural rock formations on 1,837 m high Doi Phu Wae peak. The ascent takes 3 days and 2 nights. The scenery of the sea of mist and the mountain range is the reward for the trekkers who can reach Phu Wae peak. The park was established on June 17, 1999. Doi Phu Kha National Park is part of
Doi Kham be reduced to ashes. Also, the number of people growing opium poppies was increasing. At the king's command, the royal project was created to provide alternative sources of income for hill tribe villages that formerly relied on opium production and swidden agriculture. The meaning of the words "Doi Kham" comes from two northern Thai words. The word "doi" means 'mountain' or 'hill' while the word "kham" is a shortened word for "thongkham" which means 'gold'. The Royal Project Foundation operates four research stations and thirty-five development centres that work with 295 villages containing 14,109 families. Involved are approximately 85,000 rural