Sault Ste. Marie Canal Sault Ste. Marie Canal The Sault Ste. Marie Canal is a National Historic Site in Sault Ste. Marie, Ontario, and is part of the national park system, managed by Parks Canada. It includes a lock to bypass the rapids on the St. Marys River. The first canal on the site opened in 1798, but was destroyed in 1814 during the War of 1812. The latest canal dates to 1895, and formed part of the shipping route from the Atlantic Ocean to Lake Superior, along with the two locks on the US side of the river. One of the walls of
Sault Ste. Marie, Michigan from in January to in July. On average, only two out of every five years reaches , while there are 85.5 days annually where the high remains at or below freezing and 26.5 nights with a low of or colder. Average monthly precipitation is lowest in February, and highest in September and October. This autumn maximum in precipitation, unusual for humid continental climates, owes to this area's Great Lakes location. From May through July (usually the year's wettest months in most of the upper Midwestern United States, away from large bodies of water), the lake waters surrounding Sault Ste. Marie