Sault Ste. Marie, Ontario the locks. An anti-aircraft training facility was established north of Sault Ste. Marie on the shores of Lake Superior. Barrage balloons were installed, and early warning radar bases were established at five locations in northern Ontario (Kapuskasing, Cochrane, Hearst, Armstrong (Thunder Bay District), and Nakina) to watch for incoming aircraft. Military personnel were established to guard sensitive parts of the transportation infrastructure. A little over one year later, in January 1943, most of these facilities and defences were deemed excessive and removed, save a reduced military base at Sault Ste. Marie. The first "Algerine"-class minesweeper in the Royal Canadian Navy
Sault Ste. Marie, Michigan route very similar to I-75. Commercial airline service is provided to the city by the Chippewa County International Airport in Kinross, about south. Smaller general aviation aircraft also use the Sault Ste. Marie Municipal Airport about one southwest. Sault Ste. Marie was the namesake of the Minneapolis, St. Paul and Sault Ste. Marie Railway, now the Soo Line Railroad, the U.S. arm of the Canadian Pacific Railway. This railroad had a bridge parallel to the International Bridge crossing the St. Marys River. The Soo Line has since, through a series of acquisitions and mergers of portions of the system, been