blog posts Petroglyphs: Preserving the Past in 3D Mar 7, 2019 1:45 pm by John Lambert and Alleen Betzenhauser | Illinois State Archaeological SurveyBehind the Scenes Share on Facebook Tweet Email Images Archaeology team uses a portable 3D scanner to recreate the details of a hand petroglyph from a site overlooking the Mississippi River in Monroe County, Illinois. Share on Facebook Tweet Email