Fotokaart usa aerial view the soo locks 7116 59835-c a graph

Fotokaart usa aerial view the soo locks 7116 59835-c a graphic showing the locks wich permit the large ore carriers and freighters to by-pass the rapids of the St Mary s river between lake Superior and lake Huron. The international bridge spans both the river and locks to connect sault St Marie Michigan and sault St Marie Ontario ca. Made by Dexter press. Kaart is opgeplakt geweest. Op achterkant lichte lijmsporen. Zie foto.