FRANCE · LANDSCAPE · WATER
Cours d'eau (BD TOPAGE 2026)
ProDrawn as linesAppears from zoom level 12In the app's radius search
What this layer shows
The national hydrographic reference BD TOPAGE (2026 edition), watercourse by watercourse, with name and code. It is France's reference water network, more complete than the farming (BCAE) watercourse layer. On its own it does not decide whether a channel is a watercourse under water law.
Publisher and licence
Sandre / OFB / IGN (BD TOPAGE®) · Licence Ouverte 2.0
© Sandre / OFB / IGN (BD TOPAGE®), Licence Ouverte 2.0
Where the data comes from
WFS · services.sandre.eaufrance.fr
Merestone asks this service live for the area on screen. Nothing is copied or stored beyond a short cache.
Facts shown for each feature
Hydrographic code · Status
Other layers in this group
- Aires d'alimentation de captages (AAC)
- Zones sensibles à l'eutrophisation
- Zones de répartition des eaux (ZRE)
- Périmètres de SAGE
- Cours d'eau classés — liste 1
- Cours d'eau classés — liste 2
- Obstacles à l'écoulement (ROE)
- Contextes piscicoles
- Zones de production conchylicole
- Cours d'eau BCAE (bandes tampons)
- Masses d'eau cours d'eau (DCE, état écologique, AEE)
- Masses d'eau plans d'eau (DCE, état écologique, AEE)