More rock art made by hunter-gatherers is found in Alta than anywhere else in northern Europe. The Rock Art and the settlement sites demonstrate communication in prehistory with areas thousands of kilometres away. IntegrityNearly all the Rock Art sites known in Alta are included in the World Heritage property. As part of the visitor management strategy, wooden walkways and platforms have been constructed to protect the Rock Art from damage. AuthenticityNearly all of the Rock Art of Alta is found on rock surfaces which are in situ.