อาณาเขต ทิศเหนือ ติดต่อกับประเทศสาธ

Northern Territory. Contact with the Lao People's Democratic Republic Adjacent to the South of Khon Kaen province and phetchabun provinces. In the East, adjacent to the province of Nong Bua lamphu Nong Khai province and the Khon Kaen province in the West, next to the Phitsanulok province.

Territory north of Laos. South to Khon Kaen and Phetchabun province. Adjacent to the eastern province of Nong Khai Offense And province West to Phitsanulok

North contact area with the Lao People's Democratic Republic. To the South and adjacent to the region of Phetchabun province. The East next to the office and each province.