network, has a horseshoe within Grønbogen tunnel from Dombås at the steep hills to the Dovre plateau, standard gauge, single track. The Flåm Line, Norway, has a double horseshoe, one inside a tunnel, one in the open, few kilometres below top station, standard gauge, single track. The Rauma Line, Norway, has a double horseshoe through the steep and narrow valley at Verma, one inside a tunnel and one that includes the Kylling Bridge, standard gauge, single track. Poland Grybów, Poland has a horseshoe curve 2,5 km west of the town. Kalisz, Poland has a double horseshoe curve leading the tracks from a flat plateau down to the valley of the Prosna river. Between Jelenia Góra and Szklarska Poręba in Poland there is a five-times, elongated horseshoe curve (50°51′19"N, 15°34′17"E). "N+15°33'23.6"E/@50.848201,15.5543693 Map Slovakia In Slovakia there is a significant number of horseshoe curves on the Banská Bystrica to Turčianske Teplice railway track and on the railway from Zvolen to Turčianske Teplice. More than 20 tunnels and couple of horseshoe curves were built to overcome rough terrain and elevation differences. United Kingdom Newcastle Quayside branch, a goods-only railway from the main line to the river quayside, through a steeply descending horseshoe tunnel. The horseshoe curve on the West Highland Line in Scotland between Upper Tyndrum and Bridge of Orchy was built because the engineers of the railway couldn't afford to build a viaduct crossing the remote valley. North America United States Pennsylvania The four-track route built by the Pennsylvania Railroad (PRR), the Horseshoe Curve that starts its climb along Kittanning Run due west of Altoona, and crosses two runs and three mountain faces using three gaps of the Allegheny. Muleshoe Curve, near Duncansville; Pennsylvania Railroad. "Mance Curve," between Meyersdale and Hyndman, Pennsylvania, along Sand Patch Grade (part of CSX Transportation's Keystone Subdivision) used by freight trains and Amtrak's Capitol Limited (Chicago-Washington, D.C.) Coles Curve; Coles, Pennsylvania; East Broad Top Railroad; gauge (out of service) Alaska In the Loop District of the Alaska Railroad between mileposts 48 and 51 northeast of Seward, Alaska, there was a horseshoe and a spiral, both on an extensive range of timber trestles up to 106 feet high. Track relocation in 1951 removed the original horseshoe, the spiral and all the trestles but added a new horseshoe at milepost 48. California Stanford Curve; Truckee, California; Union Pacific Railroad (originally Central Pacific Railroad, and then Southern Pacific Railroad). Five