fs1861lbk palatki grotto panel 1 dstretch lbk - 3d model fofsedona 23d7e17 small portion complex series possible archaic pictographs petroglyphs superpositioning over possibly older pre-archaic superimposed later sinagua apache imagery uses same input photographs used fs1861 but they have been processed algorithm enhance color variations determining types paint superposition part ongoing project evaluate younger petroglyph scratching additional information red rock district coconino forest can found following web sites http wwwsedonaredrocktrailsorg wwwfsusdagov recmain recreation volunteer opportunities including creation models other projects wwwfriendsoftheforestsedonaorg