Some of the graffiti may have damaged ancient, Native American petroglyphs, Mr. Pilcher, the park ranger, said.

WSJ: Outbreak of Graffiti Defaces a Beauty Spot

Bloomington, a suburb of St George, has built a cul-de-sac around a huge boulder marked with petroglyphs a model that will soon be followed by a developer near Salt Lake City.

ECONOMIST: How to reconcile archaeology with suburban growth

Turtles and cranes, frisky humans and a rare female shaman are just a few of the 1, 000 ancient Sinaguan petroglyphs on view at this fascinating site 100 miles north of Phoenix.

BBC: The writing��s on the war

Thus, documentation complex entirety integrating diversity of parameters that characterize location of petroglyphs offers a qualitative new level of the scientific analysis, materials integration, monitoring, preservation and use of the monuments of Azerbaijan.

UNESCO: The International Seminar on Rock Art "Dialogue at the Earliest Stage of Humanity." November 8-11, 2004 | United Nations Educational, Scientific and Cultural Organization

During the two-day seminar the specialists in three main fields, i.e. archaeology, protection, and museum work, which are interconnected directly, participated in studying matters of protecting and using petroglyphs as a cultural heritage embodiment.

UNESCO: The International Seminar on Rock Art "Dialogue at the Earliest Stage of Humanity." November 8-11, 2004 | United Nations Educational, Scientific and Cultural Organization