Image credit to kosmo ...
Attachment 274380
Rickie
Printable View
Image credit to kosmo ...
Attachment 274380
Rickie
height of object
mossback?
Crappie Motel of some sort.
^ what Wilbur said
Tree or shrub
Some rocks, or could be a depression. Rocks is my guess .
Crappie Condo
What you see in the shadow is the trunk and limbs of the sunk tree and more importantly the shadow of a big fish right next to it.
Looks like a boat turned on it side.