Mizoram is a land of rolling hills, valleys, rivers, and lakes in Northeast India. As many as 21 major hill ranges or peaks of different heights run through the length and breadth of the state, with plains scattered here and there. The average height of the hills to the west of the state is about 1,000 metres (3,300 feet). These gradually rise to 1,300 metres (4,300 feet) to the east. Some areas, however, have higher ranges which go up to a height of over 2,000 metres (6,600 feet).