Tlawng

The Tlawng is a river of Mizoram, northeastern India. Its tributaries include the Tut, Teirei and the Ngashih. The city of Aizawl lies in the Tlawng valley.
In 2012, a dam (Tlawng Dam) was proposed for the river.
History.
In 1890, when the British came to Mizoram, Tlawng river was the main means of transportation from Silchar.Sairang on the river banks of Tlawng is the nearest town from Aizawl which is about 14 kilometers. The journey of about 140 Kilometers from Sairang to Silchar used to take about 15–30 days depending upon the season and water level on a flat water boat.
Geography.
The Tlawng River is one of the longest rivers in Mizoram, measuring 234 km in length (Distance) or 185.50 km net displacement (a straight line) (as of 23.9.2015) Between Zobawk village near Lunglei Town to Bairabi (Mizoram Border) It originates in Zopui Hill (Near Zobawk) some east of Lunglei at an elevation of . After the confluence with Tut and Teirei River it eventually enters Cachar District. It is navigable by small boat up to Sairang. 