Mae Ngat Somboon Chon Dam  The Mae Ngat Somboon Chon Dam (; ), is a multi-purpose hydroelectric dam in the Mae Taeng District of Chiang Mai Province, Thailand. It impounds the Mae Ngat River, a tributary of the Ping River. The dam is located at the western side of Si Lanna National Park. Mae Ngat Somboon Chon Dam is an earth fill dam. It is long and high. Its reservoir has a maximum storage capacity of with a catchment area of . The dam's power plant has two hydroelectric generating units, each with an installed capacity of 4.5 MW. They became operational in 1985.