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 goes over the Tarn valley, linking (2) raised limestone areas, the Causse du Larzac and the Causse Rouge, and is inside the area of the Grands Causses park.