Too tempting to not post

[Tao]

I had a good friend who knows a thing or two about artifacts look at this. He thought it was natural, but suggested I post here for second opinions.

[chase]

Your friend is correct. its natural, not altered by man.

[kreative]

Posted by [Mainejman]:

Looks natural from here.Was it found randomly or was it found at a place where other artifacts are commonly found.I have a few items that. I call guilty by association.They show no work by man but are unique because of where i found them.In other words they dont fit in with the rest of the rock found from a particular site.Most sites ive come across eventually yield some questionable examples.

[Tao]

Eastern Iowa, creek find. It was unique in that it didn't really "fit" for where it was found, which was part of the reason why I picked it up, in addition to the shape. But I don't recall that I or anyone else ever found other artifacts associated with that area, so in the end I agree that it is natural.
Thanks for your input, and I'll keep the "guilty by association" category in mind for future finds!