Very fortunate Bill; however the water is clear enough to see alot of this structure anyway. I am starting to be able to see structure that is at least 4' under the surface, but a lot of it is deeper than this so the pic will be helpful in locating those areas.

I was really kind of kicking myself for not hiring someone in a plane to get a shot showing the layout of the pond before it filled. Amazingly Google earth came through for me... Sometimes better to be lucky then good, I guess...