Pays Nantais in French
Bro Naoned in Breton
The province of Nantes has always been an integral part of Brittany. When the French government instituted the current administrative divisions called departments, The Province of Nantes was renamed the department of Loire Atlantic, with similar borders. When the departments were grouped into regions, however, Loire Atlantic was taken away from Brittany and attached to a new group called Pays de la Loire. Neither the Breton people or the Nantais have recognized this, and continue to lobby that it be officially returned. This is why some modern maps of Brittany do not include this province.
The most important feature that you will notice is the sharp escarpment which runs from the northwest to the southeast. The city of Gwennrann or Guérande is located in the middle of this ridge. The the south lie the 'white lands', the salt marshes, home of the people that the French call Paludier, and north lie the 'black lands', the peat bogs, home of the people that the French call Metayer. On the peninsula in the southwest, two cities form their own distinct costume areas within this region; Croisic and Pouliguen. Here is Guesdon's map of these costume areas, which is more detailed and accurate than Creston's.
1. The Swamp Dwellers, [Paludier], including the towns of Batz and Guerande, as well as many villages in the area, consisting of the salt marshes and the land immediately surrounding them.