Investigative journalist Paul Beban and Andy Bastamante meet Jon Dover, Indian and Indian Reserve park ranger. He guides them to a Canyon cliff with thousands of petroglyphs. Some of them are many centuries old. So that there are drawings that have already been applied with black gunk, faded over time. Others are still clearly visible. The black layer, which could be basalt, a layer of solidified lava that appeared through crevices and painted the rock centuries ago, was scratched out into many figures by the Indians.

After all, the Indians don't have a script.

Everything they know is from generation to generation d Transmitted through drawings, stories, poems, singing and dancing.

The huge rock with petroglyphs in Arizona is part of a long horizontal mountain range. Between which a narrow river continues to hollow out the rocks.

Near this Canyon, the Indians inhabited a huge house centuries ago, which is now called Rock Art Ranch.It is covered with hangars and attracts tourists.

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