ABSTRACT The numerous similarities among three ornated sites of Provence and Dauphine allow comparative analysis. Paintings considerated of iberic tradition and lineal schematic engravings are thrice associated. Paintings'corpus is increased by a sign unstudied till now : the « fishing-net » and the broken line. Engravings either repeat paintings or represent grates. Archaeological context is absent. We try understand the meaning of the « fishing- net » motive by comparisons among paintings, cera- mical decoration and anthropomorphic. We suggest there utilisation of painted sites by the engravers.RESUME De nombreuses ressemblances entre trois sites ornés de la Provence et du Dauphiné se prêtent à l'analyse. Peintures dites de tradition ibé...