26
Sep
(CORNWALL, Ontario) — A grounded cement carrier that ran aground Sunday in the St. Lawrence Seaway, blocking the transit of more than a dozen ships, was refloated Tuesday morning with the assistance of tugboats, according to news reports and the waterway's managers. NACC Argonaut was en route from Montreal to Oshawa, Ontario, when it grounded between St. Regis and Cornwall…