By car
From the north via the A7, take exit 17 for Montélimar Nord, then take the road towards La Coucourde (Montélimar), and then the road to Dieulefit via Sauzet and la Bégude de Mazenc.
From the south via the A7, take exit 18 for Montélimar Sud, then take the road towards Montélimar, and when you reach Montélimar (first roundabout), take the road to Dieulefit.