CA4B71HACanadian Hydrographic Service
Ontario, Prairies & Arctic Region

ICE ACTION
Mariners approaching beaching areas ahould bear in mind that the composition
and contour of the bottom may be altered from year to year because of ice
action.

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. 

 Fisheries and Oceans Canada 2023. 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.