That means ships are moving through all of the Great Lakes ... Less than one week into the shipping season – the Soo Locks opened on March 21 – the Boat Nerd map shows dozens of freighters ...

Marinetraffic.com maintains a real-time map of all international shipping and includes the ability to click on Great Lakes ships to see their names, destinations and speeds. Other options allow ...

Marinetraffic.com maintains a real-time map of all international shipping and includes the ability to click on Great Lakes ships to see their names, destinations, speeds and more.