To the north as far as the rocky point of St Gildas, sheltering the mouth of the Loire, the shore, often occupied by salt marshes (marshes of Poitou and Brittany), is low-lying and hollowed by deep bays sheltered by large islands, those of Olron and Re lying opposite the ports of Rochefort and La Rochelle, while Noirmoutier closes the Bay of Bourgneuf.
The earlier deposits of that sea now rise to the surface in Brittany, the Ardennes, the Montagne Noire and the Cvennes, and in all these regions they arc intensely folded.
The Ouest-Etat, a combination of the West and state systems. The former traversed Normandy in every directionand connected Paris with thetowns of Brittany.
His father, John Bouguer, one of the best hydrographers of his time, was regius, professor of hydrography at Croisic in lower Brittany, and author of a treatise on navigation.
In 1199 she crushed an Angevin rising in favour of John's nephew, Arthur of Brittany.
