Chan River Upstream originated from the triangular mountains West of Mae Chan District, adjacent to the Shan State of Burma. Flows through to the east To the northeast Together with the word river into the Mekong River Has a length of about 100 kilometers.

 

There is one dam or weir at Pa Tung Subdistrict, a small weir of Mae Chan District farmers and Chiang Saen district residents. Use in agriculture is One of the most rice growing in Chiang Rai Even if it is a small line and not very long.

 

Every river in Chiang Rai will flow to the north or northeast. This is because Chiang Rai Province has mountains around the territory, especially to the east, west and south.

 

Which is dense in the mountains so there is no way for the water to flow Except for the north and northeast, which is the Mekong River Basin No dense mountains Causing the surface of the world around Chiang Rai to slope to the north.

 

Causing all rivers to flow north and northeast into the Mekong River Which is a special feature than other provinces of the country.