All BRGM content for citizens and citizen's groups.

Cross-section of the volcanic structure beneath Mayotte. This three-dimensional representation provides a conceptual model of how the sections of the magma reservoir beneath the island might be connected.
Press release
A magma reservoir discovered under Mayotte
12 Nov 2025
Map of aquifer levels in mainland France on 1 November 2025.
Press release
Groundwater tables on 1 November 2025
10 Nov 2025
Issue No.1 of BRGM mag, BRGM's magazine, was published in November 2025.
Magazine
BRGM mag, the new BRGM magazine
5 Nov 2025
Geochemical sampling campaign.
Video
Finding out more about the subsurface and its mineral resources by analysing stream sediments
4 Nov 2025
BRGM develops databases for analytical and predictive 3D-modelling of the status of the ground and subsurface
Video
Making the invisible visible: a series of videos on BRGM 3D models
3 Nov 2025
Helicopter-borne geophysical acquisition campaign in the Massif Central (2023).
Press release
Four helicopter-borne geophysical campaigns to unlock the secrets of groundwater
27 Oct 2025
The Jonquilles River, Corrèze
News
Access to groundwater data: SIGES evolves
21 Oct 2025
The Forbach mine, Moselle
News
Lorraine coalfield: how can we manage the rising groundwater?
21 Oct 2025
Map of aquifer levels in mainland France on 15 October 2025.
News
Groundwater tables on 15 October 2025
21 Oct 2025
Very plastic Eocene to Oligocene clays (Pont-Péan, 2022).
Video
Science in questions: what is "clay shrinking and swelling"?
13 Oct 2025
Map of aquifer levels in mainland France on 1 October 2025.
Press release
Groundwater tables on 1 October 2025
8 Oct 2025
Tuff waterfalls at Baume-les-Messieurs (Jura, 2022).
News
BRGM joins the French National Water Committee
2 Oct 2025