Calgary is the largest city in the province of Alberta, Canada. It is in the south of the province, in a region of foothills and high plains, approximately 80 km east of the front ranges of the Canadian Rockies. Calgary is the third largest civic municipality, by population, in Canada. As of April 2006, Calgary's population was 991,759. The estimated metropolitan population was 1,060,300 in 2005, making Greater Calgary the fifth largest Census Metropolitan Area in the country. It is located within the relatively densely populated "Calgary-Edmonton Corridor". It is the largest Canadian metropolitan area between Toronto and Vancouver.