article_snippet.sent: The Canadian Coast Guard Ship Samuel Risley is shown in this photoLake Superior.
article_snippet.sent: The Canadian Coast Guard Ship Samuel Risley was participating in an effort to free eight freighters from heavy ice .
article_snippet.sent: Mark Gill, director of vessel traffic services for the U.S. Coast Guard, told the Duluth News Tribune:
article_snippet.sent: The ice breakers on the scene include the US Coast Guard cutter Alder – the largest US icebreaker, according to the Duluth News Tribunethe Duluth News Tribune.
article_snippet.sent: the US Coast Guard cutter Mackinaw (right) works in thick ice to break out the freighter Edwin Gott in Whitefish Bay .
article_snippet.sent: Mark Gill, director of vessel traffic services for the U.S. Coast Guard, said 'this is just crazy