Four tunnels run under the ridge: One is the eponymous Tunnel, which comprises two tubes that are and long, making it the longest road tunnel in Germany. The tunnel was opened in 2003 as a motorway tunnel for the A 71 autobahn. The second is the long Brandleite Tunnel, which was opened in 1884 and leads the railway under the Thuringian Forest. The vertical height difference between the two tunnels is less than seven metres. The third is the long Tunnel on the Railway. The long Tunnel is part of the high-speed railway.