Free topographic Lake Maps Online
Not sure if this has been mentioned here before or not, but I figured I would share it. I ran across this website when I was looking for mobile gps/topo maps for my phone. This seems to be similar to what the offer for mobile devices. This is free, but the mobile app is $10, but worth it because it shows your location, direction, speed, and you can mark spots.
Anyways, this is a great tool for researching holes before heading to the water.
WebApp | Navionics
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