Mar 15, 2001 — With so much snow still on the ground, spring can seem a long way off. But on the frigid St. Lawrence there is a sign of the warm days to come. Huge icebreakers are clearing a path for the international freighters that use the Seaway nine months of the year. After a long winter, the interior of North America will soon re-open to the Atlantic Ocean, and the rest of the world. David Sommerstein climbed aboard the Robinson Bay for one of the tugboat's first missions of the season--breaking ice in the canal between Eisenhower and Snell Locks near Massena.