Our work

100 Years of Geological Mapping Event

5 October 2018
Location: TNO Utrecht, Princetonlaan 6 - Utrecht

On 1 July 1918, Cornelis Lely, Minister of Transport and Water Management, founded the Geological Survey of the Netherlands. His ambition was to map the subsurface of the Netherlands in a systematic way. In the century since that pivotal moment, mapping has been carried out almost continuously, with ever-evolving techniques and aided by increasing knowledge of geological contexts. The circumstances and challenges of society have constantly evolved as well, and the Geological Survey’s products have developed from paper maps to a suite of digital 3D models. In meeting these societal challenges, the Geological Survey of the Netherlands has become one of the most modern in the world, and the Dutch subsurface one of the best known. Nevertheless, the foundation remains the same as it was 100 years ago.

Just as our peers do in countries around the world, we provide insight into geological resources and geological risks on a national scale. Resources such as energy, water and building materials. Risks related to soft sediments, land subsidence and earthquakes. These insights must be rooted in a thorough understanding of the subsurface, which is at the heart of the Geological Survey.

Now, 100 years have passed. We want to commemorate 2018 as the year of ‘100 Years of Geological Mapping’. As part of the festivities, we are pleased to invite you to our centennial event on Friday 5 October 2018. The programme includes a professional symposium and a centennial celebration. We will proudly unveil the new, vastly improved geological overview map of the Netherlands, which on average is updated only once every couple of decades. This special moment marks the start of our centennial celebration.

Below are the day’s agenda and the registration button. Participation is free of charge, and you can register until 24 September 2018.



Reception morning and day guests




Welcome by Tirza van Daalen, Director Geological Survey of the Netherlands


Keynote Holger Kessler, Team Leader Modelling Systems British Geological Survey


Words by three geologists from the Geological Survey of the Netherlands:
Denise Maljers
Johan ten Veen
Willem Jan Zaadnoordijk


Paul de Krom, Chairman of the Board of Directors TNO


Unveiling the new geological overview map of the Netherlands: Paul de Krom, Sandor Gaastra (Director-General Energy, Ministry of Economic Affairs and Climate) and Erik Jan van Kempen (Programme-Director-General Environment Law Ministry of the Interior and Kingdom Relations)


Explanation of the new map by Michiel van der Meulen, Head of Mapping at the Geological Survey of the Netherlands


Lunch break, start ‘demo square’ with examples of our work


Reception afternoon guests


Welcome to new guests by Tirza van Daalen


Introduction Staring Lecture by Lucia van Geuns, Chair Royal Geological and Mining Society of the Netherlands (KNGMG)


Staring Lecture by Michiel van der Meulen


Short break


Social relevance and perspectives


Wrap up


Drinks at the ‘demo square’



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