Definition:
Rock art is the collective term used for various forms of artistic expression by humans and their immediate ancestors by incising, etching, painting, pecking, or otherwise physically changing the faces of outcrops or the walls of caves, or simply by moving or piling rocks on the landscape to form a design or pattern. Rock art subsets include petroglyphs, pictographs, engravings, geoglyphs, and petroforms.
Sources
A ludicrously short bibliography has been collected on rock art for this glossary entry.
This glossary entry is part of the Dictionary of Archaeology.
Examples:
Lene Hara Cave (Indonesia), Kapova Cave (Russia), Koonalda Cave (Australia), Chauvet Cave (France), Lascaux Cave (France)
