The Northern area covered most of Canada, also known as the Subarctic, in the belt of semiarctic land from the Rocky Mts. to Hudson Bay. The main languages in this area were those of the Algonquian-Wakashan and the Nadene stocks. Typical of the people there were the Chipewyan. Limiting environmental conditions prevented farming, but hunting, gathering, and activities such as trapping and fishing were carried on. Nomadic hunters moved with the season from forest to tundra, killing the caribou in semiannual drives. Other food was provided by small game, berries, and edible roots. Not only food but clothing and even some shelter (caribou-skin tents) came from the caribou, and with caribou leather thongs the Indians laced their snowshoes and made nets and bags. The snowshoe was one of the most important items of material culture. The shaman featured in the religion of many of these people.