Around where I live there's lots of old forgotten small cemetaries out in the woods, often from the 1800's. A guy I know stumbled across one that was in poor shape and he wanted to make it right by cleaning it up, propping the stones up, etc. However he wasn't totally sure they were in the original spot since they weren't pointed the same way and it was next to a logging road, so he wasn't sure what the ethical thing to do would be... to leave it alone, prop them up, to clean it up or not, to take it upon himself to research it, etc. Most of all he wondered what was the correct ethical choice as to whether to prop them back up or not. I didn't think it was an ethical issue but he was wondering about it so much that I've started wondering if there was a religious rule for this sort of situation. I doubt there is but I figured I'd ask.