fs1852 palatki grotto panel 17 detail - 3d model fofsedona 17e4c26 small portion complex superposition probable archaic sinagua yavapai apache pictographs scratched petrolgyhs there additional &ldquo historic&rdquo greater than 50 years old modern graffiti can not removed without destroying underlying ancient glyphs rock art multiple instances historic part ongoing project evaluate younger imagery over older petroglyph scratching information red district coconino forest found following web sites http wwwsedonaredrocktrailsorg wwwfsusdagov recmain recreation volunteer opportunities including creation models other projects wwwfriendsoftheforestsedonaorg