Doi Ian quite a distance over the plains near Thoeng town. Doi Ian Doi Ian () is a mountain in Thailand, part of the Phi Pan Nam Range, at the southeastern end of Chiang Rai Province limit near the point where the limit of this province meets with the northern end of Phayao Province, nine km from the border with Laos. This mountain rises in Ngao Subdistrict, Thoeng District. Its summit is 12 km east of Thoeng, near Ngao east of the road going from it to Wiang Kaen town. With a height of 1,174 metres Doi Ian is a conspicuous mountain
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