In the winter, this junction is a ski resort served by many lifts and trails, as well as the rail line. Skiers can ride the train from the valleys below to return to the top of the runs. The Jungfraubahn (JB), which is also rack-and-pinion throughout, starts at Kleine Scheidegg and runs 9 kilometres through tunnels in the Eiger and Mönch, leading to the "Jungfraujoch," a saddle between the Mönch and the Jungfrau summits. At the saddle are a visitor centre and an observatory. The Aletsch Glacier, largest in Europe, runs to the south toward the Rhône valley. The Bergbahn Lauterbrunnen-Mürren (BLM) is 6 km long, divided into two independent parts, the first part being a cable car (which runs above the old funicular railway, which was replaced in 2006), the second an adhesion railway. The Chemin de fer Martigny–Châtelard (MC) is 19 km long, with one rack railway section, in the canton of Valais. It connects with the Saint-Gervais–Vallorcine railway in France, the joint services being marketed as "Mont-Blanc Express". In the canton of Vaud, metre-gauge railways include the Chemin de fer Nyon-St-Cergue-Morez, the Chemin de fer Bière-Apples-Morges, the Chemin de fer Yverdon–Ste-Croix, the Chemin de fer Bex–Villars–Bretaye and the Chemin de fer Lausanne–Echallens–Bercher, as well as part of the longer MOB. The Ferrovia Lugano–Ponte Tresa (FLP), in canton Ticino, runs 12.3 kilometres from Lugano to Ponte Tresa. The Gornergrat Bahn climbs for 9 kilometres from an elevation of 1600 metres near the Zermatt station of the Zermatt RR to a 3000-metre high-end station on the shoulder of the Monte Rosa Mountain. The entire route is a rack-and-pinion railway. At Brienz the Brienz Rothorn Bahn (BRB), a steam-hauled rack railway, ascends to near the summit of the Brienzer Rothorn. There are trams operating on nine systems in seven Swiss cities.