Écluse de Tréboul, Canal du Midi lock in Pexiora, France.

The Tréboul lock features a single stone chamber built at 134 meters elevation to regulate navigation on the Canal du Midi in the commune of Pexiora.

This lock was constructed around 1674 as part of the grand Canal du Midi project under King Louis XIV to connect the Mediterranean Sea to the Atlantic Ocean.

The lock lies on the Canal du Midi, listed as a UNESCO World Heritage site. Its position between the locks of Villepinte to the east and La Criminelle to the west places it in the chain of single-chamber locks that boat crews and towpath walkers pass through in the Aude countryside.

The lock sits on the Canal du Midi at Pexiora, 73.6 km from Toulouse and at 134 m elevation, between the Villepinte lock to the east and the Criminelle lock to the west. Visitors reach it from the village of Pexiora in the Aude; the chamber is crossed by a flat stone bridge with a low parapet, from which the gates and the water level can be watched.

The lock sits at 134 metres above sea level, 73.6 km from Toulouse by canal; its neighbouring locks are Villepinte to the east and la Criminelle to the west. Look for the diamond-shaped sign with a red border on the right bank, mounted on a grey pole above the low stone wall.