Above is a screen-grab of the Niagara Bar from the regular chart, which is accurate, but does not have the detail of the High-Res Bathy Fishing Chart.
Using C-Map 4D this season I am especially impressed by the accuracy of the depth contour lines. C-Maps calls them High-Res Bathy Fishing Charts, or HRB. If you want extremely accurate detail in your contour lines, C-Map 4D delivers!!
I often fish the mouth of the Niagara River where it’s critical to follow the contour/current lines to effectively catch fish. C-Map helps me do my job well!