Page "Siege of Orléans" Paragraph 18
On the south bank, the English center was the bridge complex ( composed of the Tourelles-Boulevart and the now-fortified Augustins ).
Guarding the approach to the bridge from the east was the bastille of St. Jean-le-Blanc, while to the west of the bridge complex was the bastille of Champ de St. Privé.
On the north bank of the Loire river, on the other side of Charlemagne bridge, was the bastille of St. Laurent, the largest English bulwark and the nerve center of English operations.
Above that were a series of smaller outworks, in order: the bastille de la Croiz Boisse, the bastille des Douze Pierres ( nicknamed " London "), the bastille de Pressoir Aps ( nicknamed " Rouen ") and, just north of the city, the bastille de St. Pouair ( nicknamed " Paris "), all on top of the main roads.
Then came the great northeastern gap, although its back was mostly covered by thick forest of the Bois d ' Orléans.
Finally, some 2 km east of the city, on the north bank, there was the isolated bastille of St. Loup.