The Chi River (Thai: แม่น้ำชี) is the longest river in Thailand; it extends 765 km, but carries less water than the second longest river, the Mun. Thai (th ภาษาไทย, transcription: phasa thai, transliteration:; pʰāːsǎːtʰāj is the national and "Riverine" redirects here For the use of that term in Maritime geography, see there The Kingdom of Thailand (ˈtaɪlænd ราชอาณาจักรไทย, râːtɕʰa-ʔaːnaːtɕɑ̀k-tʰɑj The Mun River (แม่น้ำมูล sometimes spelled Moon River is a Tributary of the Mekong river
The river rises in the Phetchabun mountains, then runs east through the central Isan provinces of Chaiyaphum, Khon Kaen and Maha Sarakham, and turns south in Roi Et, running through Yasothon to meet the Mun in Kanthararom district of Sisaket Province. The Phetchabun mountains ( Thai เทือกเขาเพชรบูรณ์ are a Mountain range in Thailand. Chaiyaphum (ชัยภูมิ is one of the north-eastern provinces ( changwat) of Thailand. Khon Kaen ( Thai ขอนแก่น is the second-largest of the north-eastern provinces ( changwat) of Thailand. Maha Sarakham (มหาสารคาม also spelled Mahasarakham) is one of the provinces ( changwat) of Thailand, located in the northeastern Roi Et (ร้อยเอ็ด is one of the provinces ( changwat) of Thailand, located in the North-East of Thailand Yasothon (ยโสธร is one of the provinces ( changwat) of Thailand, located in the North-East of Thailand Kanthararom (กันทรารมย์ is a district ( Amphoe) in the northeastern part of Sisaket Province, northeastern Thailand. Sisaket (ศรีสะเกษ transliteration of Chinese character "四色菊" literally means "Four colours chrysanthemum" is one of the north-eastern The river carries approximately 9,300 cubic kilometres of water per annum. It is riddled with leeches.