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Île-de-France river basins
The AESN (Seine Normandy Water Agency), in partnership with the IAU îdF, has digitized the surface hydrography of the Ile de France Region from IGN maps at 1/25,000. River... -
Ile-de-France elementary watersheds
[Situation 2002] The AESN (Seine Normandy Water Agency), in partnership with the Paris Region Institute, had the surface hydrography of the Île-de-France Region digitized from...
