Does anyone know what this hole markings mean?

[Kirksam]

 

Amazon Forum Fav 👍

A History of Mining on the Kenai Peninsula, Alaska - Grab it through Amazon!

[xr7ator]

In my opnion it means that partuclar rock has some unique looking, but not man made markings.

 

[leadnugget]

it looks to be a metate. a stone used for processing grain and seeds.
welcome to treasurenet.

 

[Greek_Hunter]

It's man-made and you want to know if there's money involved. If you can put me in the area of a 50yard diameter maybe I can help you. Usually they're burial grounds but I can't tell by a picture alone. In the old days they even used it to light their candles there for their dead. Like today's votive stand. But, it could not be!!
Example:

It can also be measurements! It all depends on the grounds that you're stepping on! That's my opinion from my experience.

PS! If your rock is easily movable, forget all that I said. It does not apply.