Donautalbahn
It forms part of the Danube Valley Railway of Baden-Württemberg. The line is famous especially for its charming course through the Upper Danube Nature Park ("Naturpark Obere Donau"), and is particularly attractive to bicycle tourists. The Royal Württemberg State Railways built the line as part of the railway projects undertaken between 1865 and 1873. Since 1901, the Danube Valley Railway, together with the Höllentalbahn, form part of the pan-regional railway link from Ulm to Freiburg im Breisgau.