Geographic information systems (GIS) have been used to study the Chauvet-Pont d’Arc Cave (Vallon-Pont-d’Arc, Ardèche) for over ten years, with the support of the Ministry of Culture’s Centre National de Préhistoire (CNP). Their use has facilitated the centralisation and description of data and metadata. The arrival of Web 2.0 today opens up new prospects for data acquisition in situ and makes an interdisciplinary information management possible. The WebSIG application at the Chauvet Cave is proposed as an operational response to new uses. The introduction of Geoweb tools in archaeological practices invites us to adopt a reflective approach so as to highlight their usefulness in the study of decorated caves.