Hanoverian Southern Railway
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.