The Great Lakes normal ice breaking resources provided by the American and Canadian coast guards performed admirably but they weren't enough. Fortunately once the St. Lawrence Seaway opened in late March, Canada was able to send in two heavy polar-class icebreakers, the CCGS PIERRE RADISSON (shown at the top and snapped by Ron Beaupre as she passed his place in Mariatown, Ontario) and CCGS DES GROSELLIERS, along with the heavy endurance breaker, CCGS MARTHA J. BLACK (snapped by my friend Nathan Attard in Port Colborne http://carlzboats.blogspot.ca/2014/04/light-icebreaker-ccgs-martha-l-black.html).
http://youtu.be/T1bJkjBpmNM Cool eh!! c);-b