The Grafenort – Engelberg Tunnel is a railway tunnel built on the Luzern–Stans–Engelberg-Bahn part of the Zentralbahn in Switzerland.Historically the Luzern–Stans–Engelberg-Bahn had a very steep 25% incline between Grafenort and Engelberg; replacing this with a more direct tunnel has shortened uphill journey times by 14 minutes and increased capacity.
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