capital and largest city of Saskatchewan, Canada, on Wascana Creek, in the south-central part of the province. It originated as a hunters' camp and was known as Pile O'Bones for the heaps of bones left there after skinning and cutting buffalo. Captain John Palliser, the explorer, visited the site in 1857 and called it Wascana (derived from its Cree Indian name, Oskana); with the arrival of the Canadian Pacific Railway in 1882, it was renamed Regina (Latin: “queen,” in reference to Queen Victoria). The settlement served as the administrative headquarters of the Northwest Territories from 1882 until 1905, when it was selected as capital of the newly formed province of Saskatchewan. Louis Riel, leader of the Métis rebels, was tried for high treason and hanged (1885) in the prison courtyard of the North West (later Royal Canadian) Mounted Police who were headquartered in Regina (1882–1920); the police training barracks and a museum and chapel (reflecting the history of the “Mounties”) remain in the city. After World War II, Regina expanded rapidly to become an important transportation, manufacturing, and distributing centre of a vast agricultural area. The main Canadian railroads, several highways (including the Trans-Canada), and a major airport serve the city. Local mineral resources and fertile prairies support an economy based largely upon oil, natural gas, potash refining, and food processing. The Saskatchewan Wheat Pool, one of the world's largest cooperative grain-handling organizations, is headquartered in Regina. Other industries include steel fabricating and the manufacture of farm implements, communications equipment, paints, and building materials.