Quote:
Originally Posted by Dogsled
Out of curiosity, what would the GPS do for you? I use general online ODNR topo maps as a guideline and a depth finder once on the water.
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The topo maps only give you general locations of underwater items/structure. After you locate a particular underwater structure with your depthfinder, you can create a waypoint for that "exact" location in your GPS and then use the GPS to return to that structure without having to spend the majority of time it took to locate it the first time. The basic mapping does not have topo lines and the shoreline shown can be off significantly, but it is still usable, just not as convenient as the auxiliary mapping.