Somport Rail Tunnel

The Somport Rail Tunnel is an international railway passage that runs beneath the Pyrenees, connecting the Pyrénées-Atlantiques department of France with Spain's Huesca Province. This structure stretches nearly 7,900 meters through the mountain range.

Construction of the tunnel began in 1908 and finished in 1928, marking a major step forward in railway connections across the Pyrenean border. This project demonstrated early 20th-century engineering ambitions for mountain passages.

The tunnel holds the status of a registered historical monument in France, reflecting its importance in linking French and Spanish communities across the border. This recognition shows how the passage became central to regional identity on both sides.

This passage undergoes regular maintenance and functions as a rescue facility with specialized safety equipment. Visitors should be aware that periodic maintenance and safety exercises may cause temporary closures.

The tunnel serves a dual purpose that extends beyond regular train traffic, functioning as a binational rescue facility with coordinated emergency protocols. These shared emergency capabilities are unusual and show how closely France and Spain work together in the mountains.

Location: Pyrénées-Atlantiques

Location: Huesca Province

Inception: 1908

Official opening: July 19, 1928

Length: 7,874 m

Part of: France–Spain border

GPS coordinates: 42.79344,-0.54291

Latest update: December 8, 2025 19:42