High Quality Content by WIKIPEDIA articles! The District Municipality of Tumbler Ridge is a small town in the foothills of the Canadian Rockies in northeastern British Columbia, Canada, and a member municipality of the Peace River Regional District. The municipality of 1,574 square kilometres (608 sq mi), with its population of 2,454 people, incorporates a townsite and a large area of mostly Crown Land. The housing and municipal infrastructure, along with regional infrastructure connecting the new town to other municipalities, were built simultaneously in 1981 by the provincial government to service the coal industry as part of the British Columbia Resources Investment Corporation`s Northeast Coal Development.