In anticipation of the coming ice season and to ensure the safety of vessels transiting the Great Lakes Basin, earlier this week the Coast Guard 9th District began its annual retrieval of the Great Lakes and St. Lawrence Seaway System seasonal aids to navigation, the largest domestic ATON recovery operation in the U.S. Operation Fall Retrieve, which affects lighted and unlighted buoys and beacons, commenced Tuesday with a goal of retrieving 1,278 navigational aids. The operation is scheduled to be completed by Dec. 28.