Anyone know anything about turning a rock quarry into a lake? There is some land that I was looking at that has been a rock quarry in the past. Now it is just a big hole in the ground with some shallow water in the bottom. Is it just a matter of digging a deep enough hole so you are below the water table and it just fills or do they need to be sealed some way. Do you need to keep pumping water into them? Any information would be greatly appreciated.