Alberta is Canada's second westernmost province, bordered on the west by British Columbia and on the east by Saskatchewan. It was a region of contrasts, with the snowy peaks of the Rockies in the west giving way to the broad and fertile prairies. The population is concentrated in the lower half of the province, where the major cities of Calgary and the provincial capital Edmonton are located. There is no network of roads through the northern parts.
Alberta's economy was originally founded on cattle and wheat, but petroleum and natural gas have fuelled the growth of the past half century. Alberta is now Canada's fourth most populous province.