The River of History Museum was opened by the Sault Foundation for Culture & History in 1992 with the mission of preserving & promoting the history of the St. Mary’s River system.

The River of History Museum is located on the first floor of the former Sault Sainte Marie Post Office building built out of limestone in 1909-1910. This well appointed and modern museum relates the complete history of the St. Mary’s River from its formation by the glaciers through the 20th Century. .

Set up in chronological order, the Museum’s 11 galleries are furnished with exhibits of local artifacts and information about the surrounding area. The galleries and exhibits are explained by an audio presentation which tells the tales of Native Americans, French fur traders, and others who helped to tame the St. Mary’s River