| On the eastern end of Oleron island, the Chateau d'Oleron overlooks the
Oleron channel. The fort helped protect the salt center at Brouage directly across the channel on
the mainland as well as the Charente estuary - and the Rochefort naval
dockyard upriver. The city walls are an example of what is often called Vauban's second
system. Small bastions are fronted by counterguards, also known
as detached bastions. Although planned, the city walls were never
Unfortunately, during your humble and obedient
servant's visit daylight was a depreciating asset, so models and
will have to suffice for the never completed town fortifications.
Instead, we will
concentrate on the citadel and its outworks.