Petroglyphs are images made by chipping or rubbing away the surface of a rock. They are often found in areas where there is natural rock, such as mountains or deserts. Petroglyphs can vary in size, from small symbols to large, complex scenes.

The subjects of petroglyphs can vary, but they often include animals, humans, and plants. Some petroglyphs also depict abstract symbols or geometric designs. The meaning of many petroglyphs is unknown, but some are thought to be religious or spiritual in nature.

Petroglyphs have been created by many different cultures, throughout the world. Some of the oldest petroglyphs in the world are over 10,000 years old.