The bridge now traverses the Tarn valley above its lowest point, linking two limestone plateaux, the Causse du Larzac and the Causse Rouge, and is inside the perimeter of the Grands Causses regional natural park.
The bridge crosses the lowest point of the Tarn valley, connecting two limestone plateaux, the Causse du Larzac and the Causse Rouge. It is also inside the Grands Causses regional natural park.