In an east-northeast course, the Wurmbach then crosses beneath the B 466, passes Unterwurmbach on its northern edge, reaches once more the museum railway, which has now merged with the Treuchtlingen-Würzburg railway, runs alongside its embankment and crosses beneath the B 13, which branches off from the other federal road. Reverse the northwest nook of the Gunzenhausen's metropolis middle, the Wurmbach then flows into the center Altmühl on the Altmühl bridge on the railway after a 12.9 km run from the best and southwest, which flows across the Altmühlsee simply above. The later seat of the local nobility was Trendel Castle, situated instantly to the north. To the north of the Wurmbach catchment area are the Altmühl feeder and the Altmühlsee that it feeds, close to the edge of which the Walder Altmühl leads not only to seepage water from the lake but in addition to the water of smaller tributaries from the watershed to the Altmühl. NHN subsequent to the B 466, approx. Along with the entry of the ST 2218 from Heidenheim-Degersheim in the west into the Obertal. At Oberwurmbach, from the west of the Filchenharder Graben, flows by means of the place constructed onto the flat spur and the valley. Filchenharder trench, from left and west to about 420 m above sea stage