I've graphed this for years...but have no idea what it is. Any guesses?

Old foundation?

yes...I believe it's an old foundation of some sort...but the two black squares in the middle don't make sense to me. Appears to be a wall on one side and casting a shadow. I guess the wall on the right could have fallen over causing the two black squares (windows??)

looks like a B....

Buried treasure

#6

That's my spot

Uh, where is this?

Could it be an old dock that sank, are there docks on this lake?

It's at Pat Cleburne. It's not a sunken dock. Only a couple on the lake and this is where no dock would be found.

Biden campaign poster?

My guess is an old foundation of some sort. Several like that on squaw that look very similar.

Subsurface missile sight.

Have you fished it to feel if it's a concrete structure or not? Draggin a heavy c-rig oughta tell you pretty quick.