Contour maps are essential tools for locating fish-holding structures underwater. Here’s how to effectively navigate and interpret these maps using your Humminbird Helix.
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Contour Lines: These lines represent changes in depth. The closer the lines are together, the steeper the drop-off. Wide-spaced lines indicate flatter areas or gradual slopes.
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Depth Numbers: These are the numbers displayed on the map, indicating the depth at various points. Use these to identify potential fishing spots like drop-offs, humps, and points.
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High-Definition Maps: Upgrading to a map card like LakeMaster or Navionics provides 1-foot contour intervals, offering greater detail and accuracy compared to the standard base maps.
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Identifying Structure: Look for changes in the contour lines that indicate structures like ledges, creek channels, and humps—prime areas where fish are likely to congregate.
Using contour maps on your Helix effectively can make the difference between a good day on the water and a great one. Make sure to checkout Fishfinder Coach to get all the best settings for your fishfinder.