Doi Ang Khang Doi Ang Khang Doi Ang Khang () is a mountain in Fang District, Chiang Mai Province, Thailand. It is part of the Daen Lao Range that straddles both sides of the Burmese-Thai border. It is the site of an agricultural station, the first research station set up by King Bhumibol Adulyadej in 1969. The peak of Doi Ang Khang is above sea level, and the agricultural station covers an area of 1,989 "rai" (318 ha). The temperature average is 17.7 °C. The highest temperatures range from 35-38 °C in April. The lowest temperature recorded is -3 °C in January. The
Doi Tung to the princess mother's interest and encouragement, the hills were reforested. She was also instrumental in fighting against the opium trade. As a result the local hill tribes stopped growing poppies and began to grow other crops. The royal villa was originally built as a summer residence for the princess mother and now houses a museum and displaying her work to improve the life quality of local tribal people. The Mae Fah Luang Gardens are a botanical park on the slopes below the royal villa. Flowers and plants grow among rock formations. Doi Tung Doi Tung (ดอยตุง) is a mountain