The lakes I mostly fish are smaller man made lakes say approx 50 acres maybe more. I'm not a good judge on surface area.
My question is has anyone taken the time to sketch thier own map. Nothing hugely detailed just main features like channels, points, drops, brush, rock piles, etc.
Also,
In the warmer months has anyone ever dove down to see features of a specific area. For example a cliff.
Yes I know they make depth finders that read contour. ;D