InfoGéol provides access to any part of the territory to information from the geological map of France at 1: 1,000,000 and 1: 50,000 as well as geological logs from the BRGM underground database.
Questions about the application can be submitted via the BRGM assistance site (https://assistance.brgm.fr/formulaire/posez-votre-question?tools=InfoGeol).

The smartphone version allows you to display lithological and stratigraphic information local or on a specific sector. Definitions are associated with the main geological terms (type of rock, lithology and age).