Yep.. pretty neat stuff..
My family has one that dates back to the 1830's right here in north Shelby County... my 3 x's great grand father and mother are buried there.. the land is still in our family.
We have an old slave grave yard someplace too, but no one seems to know where it is exactly anymore.. there were no stones to mark the graves unfortunately.
After some research, I found 2 more of my family cemeteries that date back into the 1700's down in eastern GA.. Visiting them was pretty cool, but like others have said on previous posts, most of the stones are slick and you can't read much on them.
The sad thing about these old places is, those that are on land land that is not longer in the family and no one maintains them, they get lost in time as they get overgrown and suburbia eats them up if they are near a town. And after a few generations, the folks buried in them are totally forgotten about.