of the Gareloch and Loch Long before emerging alongside the northwesterly shores of Loch Lomond, then climbs Glen Falloch to Crianlarich. The branch to Oban diverges at Crianlarich, an important Highland junction of both road and rail, and runs through Glen Lochy to and through the Pass of Brander to reach salt water at and before a final climb over a hill to . About from Crianlarich, the Mallaig and Oban routes both pass through the village of Tyndrum, but they are served by separate stations, making it the smallest settlement in the UK to be served by more than one railway station. After Bridge of Orchy, the line to Mallaig climbs onto Rannoch Moor, past the former crossing point at Gorton Crossing to station. In winter, the moor is often covered with snow, and deer may be seen running from the approaching train. The station at on the moor is one of the most remote stations in Britain and is not accessible by any public road. This is the summit of the line at 1347 ft (410 m) above sea level. Carrying on northwards, the line descends above the shores of Loch Treig and through the narrow Monessie Gorge. The final stop before Fort William is . The section between Fort William and Mallaig passes over the Glenfinnan Viaduct, through Arisaig with its views of the Small Isles of Rùm, Eigg, Muck and Canna, and the white sands of Morar before coming to Mallaig itself. With the exception of the route between Glasgow Queen Street and Helensburgh Upper, and the short section between Fort William Junction and Fort William station, the railway is signalled using the Radio Electronic Token Block, controlled from the signal box at Banavie station. Services Passenger services on the line are operated by ScotRail and Caledonian Sleeper. As of May 2021, the service pattern is as follows: 3tpd each way Mallaig - Glasgow Queen Street 1tpd each way Mallaig - Fort William 1tpd Oban - Dalmally 6tpd each way Oban - Glasgow Queen Street. Additionally, 1tpd Glasgow Queen Street - Oban (one way only) Four of the services from Glasgow Queen Street - Mallaig are combined with services to Oban, splitting at Crianlarich. Similarly, two of the return services combine at Crianlarich. During the summer season from May until October a steam locomotive-hauled daily return service between Fort William and Mallaig known as The Jacobite