Kalasin is located in northeastern Thailand. With the prosperity of ancient civilizations formerly a residence of Lawa people, people were evacuated from the land on the left bank of the Mekong River to build houses around Kaeng Samrong and Pao River. 

In addition, Kalasin is also a famous excavation site for dinosaurs. There are a museum and research centre on dinosaurs that is the largest in Southeast Asia; Sirindhorn Museum. Also included are many natural attractions such as Kaeng Ka-Am Waterfall, Phu Phra National Park, Lampao Dam etc. Visitors can also visit many temples such as Pho Po Buddhist Palace, Wat Phuttanimit, Wat Pho Chai Semaram etc.