Welcome to the knowledge and research centre of the Dutch subsurface

Icon leaf

Energy transition

Geothermal energy, carbon and energy storage, and systems integration

Icon dyke

Safe and liveable delta

Climate adaptation, groundwater, and the North Sea

Icon house

Effects of mining

Induced seismicity and subsidence

Computer icon

Digital subsurface

Data management, artificial intelligence solutions, and mapping


Kabel op Noordzee bodem
GDN algemeen

Geo-expertise deployed for North Sea safety

Geophysicists from the Geological Survey of the Netherlands, together with other TNO colleagues, have developed a method to detect ships close to sea cables. This technology with dark fibers could make an important contribution to safety in the North Sea.

read more
GDN algemeen

Geological map of the Netherlands presented to the Ministry of Economic Affairs and Climate Policy (EZK)

On Wednesday April 3rd, the new geological map of the Kingdom of the Netherlands was officially handed over to the Ministry of Economic Affairs and Climate Policy (EZK). On behalf of the Geological Survey of the Netherlands (GDN), Tirza van Daalen, GDN director, and Paul Bogaard, GDN secretary, presented the map to Esther Pijs, Programme Director-General Groningen and the Subsurface at the Ministry of Economic Affairs and Climate Policy (EZK).

read more
Image of drilling for oil and gas at sea

Ten years of drilling activities in the Netherlands

What does the data show when drilling for geothermal energy, oil, gas and salt in the Netherlands? An overview of drilling activities in the Netherlands show us a record in the number of geothermal wells being drilled in the past year. Wells drilled for oil- and gas also showed a record last year, though in

read more
Een doorgezaagde boorpijp
Digital subsurface

Consortium with GDN searches for Stone Age remains in North Sea bed

With six European scientific institutions, the Geological Survey of the Netherlands (GDN), part of TNO, will develop and test a method to find traces of Stone Age habitation in the upper North Sea bed.

read more
Digital subsurface

New: the subsurface in your 3D environment

The Geological Survey of the Netherlands, part of TNO, together with ESRI, Kadaster and BZK, has developed the very first 3D web services on the National Key Registry of the Subsurface. This is an important milestone in the possibilities of 3D geodata. The first basic version of BRO 3D is now ready for use.

read more
Dutch landscape
Digital subsurface

Subsurface of Almere in GeoTOP

The GeoTOP model has been expanded to include Almere and the surrounding water. This new version of GeoTOP has been available since October 12, 2023. The expansion of GeoTOP comprises the south-western part of the Flevopolder. It covers the municipality of Almere and the surrounding area, including the surrounding waters. Within this coverage we find housing development areas such as Almere Pampus and Eemvallei Stad, and the route of the planned infrastructural connection between Almere Pampus and IJburg. These additions make the latest version of GeoTOP extra valuable.

read more


New overview map

The new geological map of the Kingdom of the Netherlands is available. The new map offers a greatly improved image of the mainland, an entirely new representation of the geology of the North Sea, and for the first time includes the Caribbean part of the Kingdom.

Order geological map


Coast with rocks

Paleo-Five: the final frontier in North Sea exploration

As part of the cross-border Paleo-Five Project, researchers from the Geological Survey of the Netherlands (GDN) and the British Geological Survey (BGS) worked on mapping out ancient, deeply buried rock strata from the Carboniferous period. Experts from the fields of geology, geochemistry, paleo-ecology, and seismology studied the geological distribution and composition of these rock layers for an offshore area shared by five countries in the southern and central North Sea.

Aerial photo of landscape with trees and water

GDN advises geological survey of Saudi Arabia

As the second largest oil-producing country in the world, Saudi Arabia wants to anticipate the global transition to sustainable energy sources. The country has embarked on a diversification strategy with the mining sector as its economy’s new big driver. An important step in this is the creation of a geological database. The Geological Survey of the Netherlands (GDN) is part of a consortium supporting this ambition.