Heidenheim an der Brenz
The Brenz line, which was opened in 1864 to Heidenheim an der Brenz, had the potential to provide a link through the "Ostalb" from Aalen to Ulm, but did not achieve this aim until 1875/76. The spa town of Wildbad in the Black Forest was linked in 1868 to the Enz Valley Railway at the junction of Pforzheim in Baden.