Chiang Mai Province of approximately . The mountains of the Daen Lao Range () at the north end of the province, the Thanon Thong Chai Range () stretching in a north-south direction, and the Khun Tan Range in the east of the province are covered by rain forest. The Mae Ping, one of the major tributaries of the Chao Phraya River, originates in the Daen Lao mountains. The highest mountain in Thailand, Doi Inthanon at , is in Chiang Mai Province. Several other national parks are also in the province: Doi Suthep-Pui, Ob Luang, Sri Lanna, Huai Nam Dang, Mae Wang, and Pha
Doi Kham additives. Their products do not contain preservatives or artificial flavors. Doi Kham Food Products is a private limited company. In recent years it has been profitable. In 2016, the firm had revenues of 1.82 billion baht. Projections for 2017 and 2018 are 2.07 billion baht and 2.4 billion baht. Doi Kham employs total of 200 persons including five engineers and five quality assurance staff. Doi Kham has processing plants in Fang District, Chiang Mai Province; Mae Chan District, Chiang Rai Province; and Tao Ngoi District, Sakon Nakhon Province. The company has 34 retail shops nationwide. Doi Kham The Doi Kham