Task: Text Simplification
Input (English): 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.
Output (English): the bridge now crosses the tarn valley above its lowest spot , linking two limestone plateaux , the causse du larzac and the causse rouge , and is inside the margin of the grands causses regional natural park.