CAEA3543 - Picton Bay Ports Canadian Hydrographic Service AIDS TO NAVIGATION For complete details of aids to navigation, List of Lights, Buoys and Fog Signals must be consulted. GREAT LAKES ST. LAWRENCE SEAWAY SYSTEM For information regarding lock data, limiting vessel dimensions, and regulations governing the transit of vessels in the St. Lawrence Seaway between the Port de Montréal and Lake Erie, refer to the Seaway Handbook of which a current copy must be carried on board all vessels transiting the Seaway. A copy of the Seaway Handbook can be obtained from the St. Lawrence Seaway Management Corporation. © Fisheries and Oceans Canada 2020. Published by the Canadian Hydrographic Service. A licence is required from the Canadian Hydrographic Service (www.charts.gc.ca) to reproduce or distribute this work. See Notices to Mariners for subsequent corrections on this chart and Notices to Shipping in force for hazards or changes essential for the safety of navigation.