Himalaya

The eastern Himalaya rises north of the Brahmaputra valley in a succession of steep, forested ridges and high mountains. Rivers cut deep valleys through the ranges as they descend towards the plains. The Subansiri is among the great rivers of this mountainous country, gathering water from northern valleys before joining the Brahmaputra. Elevation and the force of the monsoon produce a landscape ranging from wooded lower slopes to high, cold ridges.