The Lötschberg Tunnel is a 14.612km long railway tunnel, which connects Spiez and Brig at the northern end of the Simplon Tunnel cutting through the Bernese Alps of Switzerland. Its ends are at the towns of Kandersteg in the canton of Berne and Goppenstein in the canton of Valais.
The top elevation of the tunnel is 1,240m above sea level, this is the highest point of the main Swiss railway network.
Construction began in 1907.
