On behalf of the ‘Rijksdienst voor het Cultureel Erfgoed’, a new interactive map file with elevation models of the past 14,000 years has been developed. This has happened in a joint venture between Utrecht University, TNO – Geological Service of the Netherlands and Deltares. At a later moment, the online portal ‘Kenniskaart’ is being established for archaeological professionals on the basis of this interactive map file.