nepal's lowest point, kechana kawal at 70 m, is located in jhapa district of this province. there are many river basins and gentle slopes as well. chure, mahabharat, many basins, tars and valleys form the terai region. between the churia and mahabharat a low land of inner terai exists. the koshi river flows through the region with its seven tributaries; indrawati, likhu, tamur, dudh kosi, arun, tamakoshi and bhote koshi (sunkoshi). tundra vegetables, coniferous forest, deciduous monsoon forests and sub-tropical evergreen woods are vegetations found here. sub-tropical, temperate, sub-temperate, and alpine and tundra types of climates are found here.