Terai

The Terai region is composed of a 26 to 32 km wide broad belt of alluvial and fertile plain in the southern part of the country. This belt extends from the westernmost part of the country to the eastern limit and covers about 17% of the total land area.

In between the Chure hills, rising abruptly to the north of the southern plains and the Mahabharat range, are a number of low valleys called "Duns". The Duns resemble the Terai in relief and climate and are also called the Inner Terai. The Chure range running east west across the country is shaped like a hedge. The hills of this range are rather sparsely forested, averaging 600 to 1220 meters in altitude and 8-16 km in breadth. The soil is immature and dry.