heres what i do,
i fold up tarps and cover the inground stones, to make them level with turf and prevent scuffing,
then lay down ply wood over all the grave stones in the area,
as well as a path out, and rig it all out and down carefully
and yes i even tell the folks in the graves why im covering them, and treat them as if it was my own familys site,
after all when you die, these may be the first people you are met by
at great scott the mexi crew bombed shit all over veterans white round topped stones, scuffed, chipped, and broken, i had never seen such disrespect in my life
i did the garberville cemetary a few years ago, and it took lots of plywood and tarps, and a shit ton of roping, but the end results were nice, and one of the survivng family members paid us to do the tree over his daughters grave as well,
that one was sad 18 yr old girl, his one and only baby, she was in a roll over wreck and survived, only to be killed by a car that hit them upside down, he apperently killed himself after the tree was done maybe a year later, every day he sat and read poetry to her, and she has the most amazing site full of trinkets from all her friends, i really felt for him.
wild eyed john (as jer calls him) and i did the tree pretty much for pocket change, maybe 1/4th of what it was worth, over 2 day trim on a cypress, because we felt his pain just by his eyes...
so do everything you can to protect those sites and stones, and treat them with love and respect...my.02 worth anyways