From 1909 to 1965 there was a connection at the end of the line at Berchtesgaden to the Königssee Railway (Königsseebahn) to the lake of Königssee. Another connecting line existed from 1908 to 1938, the Berchtesgaden-Hangender Stein railway, also called the Grüne Elektrische (Green Electric). This line was connected in turn to the Salzburg-Hangender Stein railway, which was called the Rote Elektrische (Red Electric). During the Third Reich, this rail link was closed as part of the planned duplication of the railway and the upgrading of the main road. Since then buses have run, which are dubbed the Watzmann Express. Work on the railway upgrade was begun but, due to the war, it was never completed. Even today, a tunnel without tracks near Berchtesgaden station is a reminder of that unfinished railway project.