Côte d'Or
If the Paris hydrological and geological basin is viewed as a saucer with Paris at its centre, the Côte d'Or may be seen as a segment of its south-eastern rim; the counterpart of the chalk cliffs of the Pays de Caux, on the English Channel coast to the north-west. The River Seine rises near the Côte d'Or and enters the sea near the Pays de Caux, having passed through Paris.