Tidal Current Atlases present a comprehensive view of the hourly rate & direction of major tidal currents within specific coastal regions of Canada. The Atlases use arrows to indicate the direction & the velocity of surface currents. They are to be used in conjunction with the Canadian Tide & Current Tables provided annually by the Canadian Hydrographic Service. The area covered in this atlas is from Cap de Bon-Désir to Trois-Rivières.