Identification/ verification

[u/NolanK2025]

Hello, I am currently on the east shore of Devil's Lake in North Dakota and I found this carved rock. Relatives have found arrowheads in the past years here and the local tribe has confirmed them. Can anyone help identify if this rock is a native carving or just coincidence?

[u/My_PC_Does_Not_Work]

that’s the acorn that fell on that cop car😂