In 1987 the route of the railway in the summit area was changed and the long Rosi Tunnel opened. The tunnel was named after the skier, Rosi Mittermaier, who was the tunnel patroness (Tunnelpatin) at the time. The tunnel branches from the 1930-built Zugspitze Tunnel about three-quarters of the way along it, and runs to the somewhat lower Zugspitzplatt plateau at . Here, below the Sonn-Alpin Restaurant is the new Glacier Station (Gletscher-Bahnhof) in the middle of the ski area.