“Wiang Kum Kam is an historic settlement and archaeological site along the Ping River, which was built by King Mangrai as his capital before he moved it to Chiang Mai.

It was seriously flooded and finally abandoned more than 700 years ago. The people were moved back to this area again more than 200 years later with a new community, and it was then named Chang Kham village (บ้านชั่งคำ).

In 1984, the Department of Fine Arts Unit 4 discovered remnants of the old city around Wihan Kam Thom (วิหานกานโถม) at Wat Chang Kham (วัดช้างค้ำ) and afterwards excavation was begun; since then many new remains have been found and restoration has proceeded since that time.” (1)

 [1]-http://en.wikipedia.org/wiki/Wiang_Kum_Kam