Fish or junk in the water?
Fish or junk in the water?
I have a Garmin also, I'm no expert but usually when I see what you're seeing in pics 2,3, and 4 I put my baits at that depth or slightly above and start catchin fish. As far as the vertical lines it could be your sonar picking up air bubbles coming off the bottom, If you change your chart speed and the line becomes more vertical at slower speeds and more horizontal at higher chart speeds then that's more than likely what you're seeing.
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