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
Old Federal Building (Sault Ste. Marie) Old Federal Building (Sault Ste. Marie) The United States Post Office (also known as the Old Federal Building) at 209 East Portage Avenue in Sault Ste. Marie, Michigan, is an historic building which has served various purposes since its construction in the early 20th century. The building was listed on the National Register of Historic Places on September 9, 1977. In 1822, Fort Brady was constructed on this site. In 1893, Federal troops abandoned the fort in favor of new location closer to the center of the Soo canal. The old fort site was reserved for the construction of a