Brocken Railway, Harz Region, Germany.

The Brocken Railway is a meter gauge  railway network in the Harz mountain range of  Germany. It runs from the station of Drei Annen Hohne at 542 meters,  via Schierke and the Bode River valley to the summit of the  Brocken, the highest mountain of the Harz at 1,141 m (3,743 ft) and part of the Harz National Park.  Up to six pairs of trains run daily to the top of the Brocken during the winter. Of those, four start and end in Wernigerode. During the summer, services are increased to eleven pairs of trains daily. The fastest train takes 49 minutes to reach the summit. The Brocken Railway is the only HSB line whose regular services are exclusively hauled by  steam locomotives. The steam trains on the Brocken Railway have become popular with thousands of tourists every year, offering convenient access to the top of the Brocken.