These two arches are located on "Grand Combe de Lioux", a protected natural area near the village of Lioux. The first arch has 7.5 meters span. The second secluded double arch is probably only knows by local hunters. She has 3.5 meters span with a perfect circular upper opening about 1.1 meter diameter. IGN topographic map Top 25 number 3142 west "Cavaillon" pleat C4. Reference Arch Hunter Book FR 244 & 245.