Select fish finders now allow us to interact with internal mapping in powerful ways. One of those is Shallow Water Highlight and Depth Highlight offered by Humminbird. As Elite Series pro Chad Morgenthaler demonstrates, you can enter a desired depth and highlight range, which causes the map to brightly display all areas that have that same specified depth(s). This helps identify structural elements and the desired depth, a big plus when searching for new spots or running a pattern.
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