The inner rampart, also connected the cliffs overlooking the Danube to the Altmühl. It is 930 m long and extant to a height of up to 4 m. On its outer side is a moat (2 m deep, 7 m wide) and a berm (5 m). Two Zangentore gave access to the Michelsberg. In construction the inner rampart resembled the outer one. It was completely rebuilt once.: