Area terrain is tall mountains on the northern continent (North Continental Highland) has a high plateau. In the region, เป็นหย่อย Mae Suai District Wiang PA Pao and at a height of about 1 mountain area. 500 -,, 2 000 meters above sea level. The flat part along the river basins in the middle of the area, including Phan City, MAE Chan. I late. Chiang Saen and Khong, with a height of about 410 - 580 meters. Above sea level, with an area of study, all 11 678.369 square kilometers, or 7, 298 981 rai.
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