The use of lasers to remove graffiti from rock imagery is discussed. Rock imagery refers to paintings, carvings, and the like on rocks typically created by native communities.

Moss Rudley on the Role of the National Park Service Historic Preservation Training Center

Tune into this collection to find out how historical sites and artifacts are preserved. Technology preservation is discussed along with preservation projects and events hosted by the National Park Service. Information on specific historical sites are included as well.