The Salawin National Park or Salween National Park(Thai: อุทยานแห่งชาติสาละวิน) is located in Mae Sariang and Sop Moei Districts in Mae Hong Son Province, northern Thailand, adjacent to its border with Burma. Much of the Thai part of the Salween River[3] is included in the 721.52 square kilometres (278.58 sq mi) park.