The Khun Tan Range stretches from north to south along the eastern side of the district. The western tip of the district lies within the Daen Lao Range.
History
The minor district (king amphoe) Chai Prakarn was created on 1 January 1988, when four tambons were split off from Fang District.[1] It was upgraded to a full district on 4 July 1994.[2]
Administration
Central administration
Chai Prakan is divided into four sub-districts (tambons), which are further subdivided into 44 administrative villages (muban).