Later, the Royal Forest Department has a Book dated August 2 2526 to Lampang and forest region of Lampang. Consultation to upgrading cascade Park Chae son (basin of warm water park) is a national park and Lampang province has a book urgently. 12 dated September 2526 fields and forests of Lampang has given approval and support. In order to determine a national park as a tourist and recreation. Is consistent with the cabinet on the 25 January 2526 designated the province. As the provincial tourism promotion.