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The entrance to the Sentier des Belvédères du Colorado Provençal is located at the ticket office of the Parking des mille couleurs along the D22 between Rustrel and Gignac.
(S/E) On leaving the car park, follow the Orange Belvedere Trail signs along the path, respecting the direction of travel.
(1) At marker S1, turn right to follow the track that follows the bed of the River Doa. From marker S12, the path begins to join the ochre quarries.
(2) From S14 to S18, the path crosses the former main quarry known as "Sahara", and is marked by wooden stakes. The ochre sand dunes must not be climbed to protect them.
(3) Marker B1 indicates the continuation of the Orange trail. The Blue trail returns to the car park. Take the path marked Orange, which goes deeper into the forest to reach three lookouts.
(4) The first viewpoint overlooks the main quarry. Continue along the path.
(5) The second offers a view of an old quarry with fairy chimneys. Return to the path and, at marker B09, turn right.
(6) Arrive at the white quarry known as the "white desert". Continue to follow the orange signs to the left to return to the car park.
At marker B11, take the shortcut across the River Doa to get back to the trailhead.
Start of the Tour du Colorado
(1) At marker S02, turn right onto the track, cross the ford of the River Doa, follow the GR®6and the GRP® Autour du Luberon et des Monts de Vaucluse, signposted White and Red on the DFCI MV41.
After a kilometre, the track overlooks the Barriès site, a former ochre quarry.
(7) Continue along the track as far as the Barriès signpost.
(8) Leaving the GR®6on the left, continue towards Pradenques along the track on the right. At the tarmac road, turn left for around 100 metres, marked in yellow.
(9) At the Pradenques signpost, turn right onto the road towards Ubac de Pradenques, signposted in Yellow and Red.
(10) Leave the road at a slight bend and take the ridge path as far as the Croix de Cristol signpost. Be careful not to take the paths that descend before reaching the Croix de Cristol. Continue on the path marked with a Red Cross and a Yellow Cross.
(11) At the Croix de Cristol signpost, head towards Rustrel, Istrane. Be careful, the path can be slippery at certain points on the descent. Towards the end of the descent, there are views of the Colorado cliffs and old ochre quarries.
(12) Cross the River Doa, go up the road to the right of the water treatment plant, turn right onto the "Chemin de la Poste" road and continue along this road until you reach the Colorado car park (S/E).
Walker
Easy 
