Kalasin, the land of Pong Lang music, is an ancient city with many interesting historical sites. It is the site of the ancient city of Fa Daet Song Yang and one of the largest concentrations of dinosaur fossils in northeastern Thailand. In addition, the province is well known for it's silk cloth with the uniquely beautiful and intricate ‘phrae wa’ designs, that can only be found here. The fabrics are hand-woven on traditional looms after undergoing many delicate ‘mudmee’ dying techniques.

Kalasin has an area of 6,946 square Kilometers. It is divided into 18 districts (Amphoe): Muang Kalasin, Yang Talat, Kamalasai, Sahatsakhan, Kuchi Narai, Tha Khantho, Somdet, Khao Wong, Huai Mek, Kham Muang, Nong Kung Si, Na Mon, Huai Phung, Rong Kham, Na Khu, Sam Chai, Don Chan and Khong Chai.