Port Arthur, Ontario

Port Arthur
City
Port Arthur skyline in 2006
Country	Canada
Province	Ontario
Named (settlement)	1870
Incorporated (city)	1907
Amalgamated with Fort William to form Thunder Bay	1970
Named for	Prince Arthur, Duke of Connaught and Strathearn

Port Arthur was a city in Northern Ontario, Canada, located on Lake Superior. In January 1970, it amalgamated with Fort William and the townships of Neebing and McIntyre to form the city of Thunder Bay.

Port Arthur had been the district seat of Thunder Bay District. It is historically notable as a temporary (1882–1885) eastern terminus of the Canadian Pacific Railway (CPR). It served as a major transshipment point for lakers that carried cargo to Port Arthur from across the Great Lakes. CPR's completion to the east did little to affect the city's importance for shipping; the Canadian Northern Railway was constructed to serve the port, and it built numerous grain silos to supply lakers. This rail and grain trade diminished in the latter half of the 20th century.