The Kumaon region consists of a large Himalayan tract, together with two submontane strips called the Terai and the Bhabar. The submontane strips were up to 1850 an almost impenetrable forest, given up to wild animals; but after 1850 the numerous clearings attracted a large population from the hills, who cultivated the rich soil during the hot and cold seasons, returning to the hills in the rains. The rest of Kumaon is a maze of mountains, part of the Himalaya range, some of which are among the loftiest known. In a tract not more than 225 km in length and 65 km in breadth there are over thirty peaks rising to elevations exceeding 5500 m.