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3 x 22 Strip decal: Site Etiquette. Petroglyphs (incised, pecked or scratched images) and pictographs (painted) preserve the ideas and beliefs of earlier inhabitants. Sadly, many rock art sites are now being damaged by the impact of modern visitation. How can you help protect rock art sites? Treat these sites with respect; they are an irreplaceable part of our cultural heritage. Enjoy the images only by viewing, sketching or photographing. Please do not touch rock art!!! Never chalk, trace or apply anything (even water) to rock art. These activities make it difficult to date the rock art. Never make rubbings or castings; such practices can permanently damage the images. Avoid climbing or leaning on rock art. Rock surfaces are often very fragile. Never build fires in or near sites; soot and charcoal can damage rock art. Leave artifacts in place, it is illegal to remove them! Report looting or vandalism to a Bureau of Land Management ranger or other local authority. Volunteer your time and talents to preserve our past! For information, contact your local BLM office or the Nevada Archaeological Association. Ely Dirstrict Office. 702 N. Industrial Way. Ely N.V. 89301-9408. (775) 289-1800 or Caliente Field Station U.S. Highway 93, Caliente, N.V. 89008. (775) 726-8100. BLM and Nevada Archaeological Association logos at bottom. White/brown. Reflective.