[hh3k0]

Those would surely all be crushed beyond recognition by tectonic shifts?

[scythe]

In areas undergoing tectonic shifts, sure. In some regions, the same rocks have existed for a long time:

https://en.wikipedia.org/wiki/Oldest_dated_rocks

[nemo]

We have fossils from the Cambrian period ~500 million years ago that include many traces of holes from burrowing animals. We've identified animals from ~500 million leaving many different kinds of traces as well as from fossils. 500 million years from now humans will have left many remaining traces. While older fossils are rare and precious, there's no generalized entropy that just destroys all old things (until there's a supernova/mega-meteor/etc., eventually the planet will be gone with enough time). In the right conditions much can be preserved for hundreds of millions of years. Many human artifacts like gold and other inert metal tools will be around besides the many physical changes we've made across the surface of the Earth.

[saiya-jin]

There is one constantly happening thing that wipes the slate clean - tectonic plates movement. You can be lucky with a spot that doesn't disappear into Earth's mantle, there are few spots like that on Earth, but its not granted.

[lettergram]

How do we even know those holes are 500m years old? You cannot carbon date a rock (that's when the rock formed, not when the hole was made). Perhaps we're missing evidence of earlier civilizations in plain sight

[throwuwu]

There’s a hell of a lot more holes from prairie dogs than there are from oil wells.