Illustrated History of the Soo Locks

This presentation takes a deep dive into historic photos dating back to the 1860s to review the construction of the nine locks built since 1798 on the St. Marys River linking Lake Superior with the lower Great Lakes. In addition to sharing construction details, Michelle Briggs puts them into the context of world and US events. This presentation also includes an update on the 10th navigation lock under construction on the St. Marys River.