Brienz Rothorn Railway

The Brienz Rothorn Railway is a tourist rack railway in Switzerland, which climbs from Brienz, at the eastern end of Lake Brienz, to the summit of the Brienzer Rothorn. The railway is 7.6 kilometres long, is built to 800 mm gauge, and uses the Abt double lamella rack system. Unusually for Switzerland, the line is not electrified, and most trains are operated by steam locomotives.The Brienz Rothorn Railway reaches a height of 2,244 metres above sea level and is the fourth-highest railway in Switzerland.

Source: Wikipedia