nature made or something else

[daddyrog]

found this in creek bed few years ago and wife kept it for flower garden; have no idea what it is other than just a rock.

 

[daddyrog]

wow; 61 views and no ideas; must be a freak of nature.

 

[SoIll]

You need to look for concentric rings and uniformity inside the drill hole to know if it's man-made.

 

[joshuaream]

I can't really see details in the picture (concentric rings, edge work, polish on the holes, etc.), but my guess is natural.

 

[The Grim Reaper]

We find those in the creeks around here all the time and call the "Holey Stones". They are natural formations where a softer material has eroded out, probably a fossil, leaving the hole.

 

[Th3rty7]

Possibly a fire starting rock used with a bow and drill. Possibly?