Northeast area, South Fossa River basin is an area of Korat or thung Kula cry bar, which is the location of SI SA KET, Surin, buriram, Nakhon Ratchasima, Ubon Ratchathani and yasothon province of ROI et district thin.
Basin is the area east of the information or the Khorat basin accuracy. This is the location of Ubon Ratchathani, Nakhon Ratchasima, Buri Ram, Surin, Si Saket and Yasothon, Roi Et province.
Northeast area is the Mun River Basin under the khorat basin. Or call band Tung Kula Rong Hai. Which is the location of the Nakhon Ratchasima, buriram, Surin, Sisaket, Ubon Ratchathani, and some districts of yasothon, ROI.