Yukon—Mackenzie River Yukon—Mackenzie River Yukon—Mackenzie River was a federal electoral district in Canada that was represented in the House of Commons of Canada from 1949 to 1953. It covered the Yukon Territory, and the southwestern part of the Northwest Territories. This riding was created in 1947, and was only used in the 1949 federal election. The Northwest Territories had not been represented in the House of Commons since 1905 following the creation of Alberta and Saskatchewan two years earlier. Yukon had been represented continuously since a byelection in January 1903. It was abolished in 1952 when it was redistributed into Mackenzie River
2011 Yukon general election district boundaries for this election. The committee decided to increase the number of seats in the territory to 19. Yukon now matches the other territorial assemblies in the Northwest Territories and Nunavut in terms of the number of seats. The rural districts outside of the capital city of Whitehorse remained unchanged with the exception of Mount Lorne and Southern Lakes which were merged into a single district. The total number of rural districts dropped from 9 to 8. The urban ridings in Whitehorse were increased to 11 from 9. Only three districts in Whitehorse had no boundary changes, Whitehorse Centre,