Albula Railway
At the hamlet of Naz, near Preda, the line crosses a brief plateau, where, for several years now, there has been a double track section about long. Soon after the Preda station, which, at above sea level, is the highest stopping point on the Albula Railway, is the north portal of the Albula Tunnel. After passing through the tunnel, and the "Spinas" station at the southern portal, the train descends at a slope of up to 3.2%, to arrive in the Oberengadine at Bever, in the Val Bever. Here there is a junction with the Engadine Railway from Scuol-Tarasp. At the next station, Samedan, the line to Pontresina branches off. The Bernina Express takes this branch, which connects the Albula Railway with the Bernina Railway to Tirano. On the other hand, the Glacier Express follows the main line, via Celerina, to the terminus of the Albula Railway at St. Moritz.