Stock Photo - Sault Ste Marie, Michigan - A worker at the Soo Locks carries a line used to tie up vessels in the MacArthur Lock. Operated by the U. S. Army Corps of Engineers, the locks raise or lower ships 21 feet.

Stock Photo: Sault Ste Marie, Michigan - A worker at the Soo Locks carries a line used to tie up vessels in the MacArthur Lock. Operated by the U. S.

Searchable keywords

Choose multiple keywords