Natural or Tool?

[Poconohunter]

First post here , just looking for some insight.
Found in Monroe County,PA

[DoobieWah]

Did you dig it up, ('cause it's a potato!).

j/k. 😁

[tomclark]

If you found it on a site or at a place where there are not a lot of similar "rocks" then I call hammerstone/tool. Obviously water tumbled or pecked/abraded. I love potatoes .

[Treedin]

If you found it on a site or at a place where there are not a lot of similar "rocks" then I call hammerstone/tool. Obviously water tumbled or pecked/abraded.

X2

[Poconohunter]

There weren't any other rocks around like it, that's what caught my eye. Thanks for the insight!