Pluged pipe with rock inside it how do I unplug it

Tell us more about this pipe, what does it go to or come from and how large.

Tell us more about this pipe, what does it go to or come from and how large.
It is in a pumphouse with a well when the pump runs water goes all over the floor it goes down a drain hole where there's this pipe the water is suppose to flow through the pipe but there's a rock lodged in it the pipe is about an inch in diameter

OK so this is a drain pipe in the floor and a rock dropped down into it, right? Try reaching down with a shop vac with no attachments on the hose, just the hose by itself. It should get a pretty good pull on a rock. If not come back with more details.