Simplified tectonic map of the Pyrenees and adjacent regions (adapted from Vergés et al., 2002) showing the distribution of evaporitic deposits of Upper Triassic and Cenozoic age. Based on Caméra (2017) and Caméra and Flinch (2017) for the Basque-Cantabrian belt and South Central Pyrenean Unit. In both the western Aquitaine Basin-Mauléon and the Corbières-Languedoc Transfer Zone evaporite distribution is mostly compiled from French BRGM geological maps, with data from Curnelle et al. (1982), Viallard (1987), Gorini et al. (1991) and Serrano et al. (2006) and Crémades et al. (2021). The distribution of Eocene to early Miocene marine and lacustrine evaporites in the Ebro Basin is based on Vergés (1993) in the east and Garcés et al. (2020) in the west.