sousmonsol: map of the ground beneath France, geology, clays, groundwater, cavities and earthquakes

Search for an address, coordinates, a parcel, a borehole, a territory, a theme, a layer, a class to filter or an actionsousmonsol

Filter the layers shown

Filter “Simplified lithology”: type a classTry “granites”

What can I search for?

An address, a town, a postcode or an Insee codeTry “8 boulevard du Port, Amiens”Address

Coordinates, in degrees or Lambert 93Try “49.89744, 2.29008”Coordinates

A cadastral parcel, by its identifierTry “45234000BP0222”Parcel

A borehole or a piezometer, by its BSS codeTry “BSS001ACUZ”Borehole

A theme, to show its mapsTry “Flooding”Theme

A layer, by name or keywordTry “Clays”Layer

A legend class, to filter its layerTry “Granites”Class

An overseas territory, for its geological mapTry “Martinique”Territory

An action: basemap, tool, my locationTry “Aerial photographs”Action

Overseas geological maps

Tap the mapClick the map to find out what lies beneath a point