Hannöversche Südbahn
The section from Göttingen is part of the Hanoverian Southern Railway that was opened in 1854 (Hanover–Kassel–Marburg–Frankfurt am Main). Important stations are Alfeld (Leine) and Northeim. In 1867, a branch line via Friedland was built to Arenshausen to connect the Halle-Kassel Railway with Göttingen and the Southern Railway ("Südbahn"). This part of the line mostly runs in the Leine river valley.