Roi Et is one of Thailand's seventy-six provinces lies in central northeastern Thailand also called Isan. Neighboring provinces are Kalasin, Mukdahan, Yasothon, Sisaket, Surin, and Maha Sarakham.
Mukdahan is one of Thailand's seventy-six provinces and lies in upper northeastern Thailand, also called Isan. Neighboring provinces are Amnat Charoen, Yasothon, Roi Et, Kalasin, Sakon Nakhon, and Nak
Second Thai–Lao Friendship Bridge, seen from Mukdahan