Is this an artifact or odd rock?

[Flyfisher227]

I found this today fly fishing and it just seems unnatural. The rock itself was unusual and the shape as well as what seems a deliberate bar. I’m always looking in the water hoping to find something, could be wishful thinking and just a rock, lol. Never posted so I apologize if this isn’t correctly done.

 

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[antmike915]

Looks like a odd rock but don't blame you for picking it up (most of us would have too).

 

[newnan man]

Rock, but a unique shape.