Park in the car park located on the side of the road, near the Pont de Menglon.
(S/E) Leave the car park heading downhill and take the path immediately on the right. About ten metres further on, continue uphill to the right to join the Chemin de Saint-Martin. Follow this wide dirt track straight ahead; it runs along the lower part of the western slope of the Montagne de Piémard and climbs through walnut groves, vineyards and clearings until it reaches the D226, on the outskirts of the hamlet of Les Payats.
(1) Turn right, cross the hamlet, then turn left onto the D69 – taking care – until you reach the bridge over the Ruisseau des Boidans.
(2) Just before the bridge, take the dirt track on the right and follow it for a good two kilometres. Never cross the stream, which the track runs alongside at a distance of about ten metres. Heading north-east, and in the foreground, you’ll pass through walnut groves and sheep pastures. On the slopes of La Glacière and Mont Martel, vineyards, orchards, oak plantations and pine woods blend harmoniously. Opposite, there are beautiful views of the Glandasse, the Drôme valley and the vineyards of Châtillon-en-Diois, set against the region’s remarkable landscape. Pass through Le Noé below a beautiful house situated on the hillside, before joining a small, partly tarmacked road known as Impasse le Moulin.
(3) Turn right onto this small road which skirts the quarry, ignoring the paths branching off to the right. You’ll reach the hamlet of Moulin Chauvin: beautiful animal sculptures welcome you here, and you should take the time to admire them.
(4) Continue eastwards along the grassy path, running parallel to the River Bez but 200 metres away from it; it gets a bit muddy in wet weather but there’s no risk of sinking in too deeply. There are lovely views towards the Piémard mountain and the upper Bez valley, dominated by the Vercors range rising above Châtillon. The route passes through two lovely meadows, interspersed with copses, then near a renovated farm, before joining the small tarmac road at the Menglon-Châtillon recycling centre.
(5) Continue along this same road, which passes through a narrow little valley and climbs up to the plateau where a fruit grower is based, amongst orchards, walnut trees and lavender fields. Reach the junction with the D69, cross carefully, and head back to the car park where this lovely walk began (S/E).