Follow the D909 towards Monts d'Olmes, passing Montferrier by about 4 km. Leave the road and turn left onto the well-marked Route Forestière de la Mine, which leads to the car park at Étang de Moulzoune.
YellowPR® markings
(S/E) Head towards the large information panel about the Montagne de Tabe and continue along the forest road to the end.
(1) Ignore a wide path on the left and stay on the forest road, which becomes significantly steeper before leaving the woods and opening out onto pastureland. Continue climbing steadily to the Taula plateau (misspelled on the IGN map), where herds of cattle are often present.
(2) Follow the wide track that runs alongside a fence on your left.
(3) At a fork (marker post on the ground in October 2021), leave the numerous herd tracks leading to the Cabane de la Taula on your left and continue along the path, which makes a long traverse along the hillside. Go around a rocky outcrop (elevation 1678) on the right and follow a narrower path that leads to the old talc quarry at La Porteille.
In the small valley below the first extraction site, take the path on the left which climbs steeply and leads to a flat grassy area. On the left, you can see the ruined building of the quarry and the rusted remains of a steam engine.
(4) Head opposite on a very steep path that joins the grassy ridge. Keep to the left to climb the north-south shoulder to a fork marked by a signpost with directions: Saint-Barthélémy to the right and Lacs des Truites and Lac du Diable to the left.
(5) Turn left onto a narrow path that winds along the hillside, alternating between ascents and descents. Some rocky sections are difficult and require caution. When you reach a large rock formation, go around it on the left along the path. Cross a shoulder (elevation 1,843 metres) and continue to Étang des Truites.
(6) Cross the outlet - actually the source of the Lasset torrent - and continue along the path that climbs through rhododendrons and blueberry bushes under the cover of mountain pines. Reach the junction with theGRP® Tour du Massif de Tabe.
GRP® Yellow and Red markings
(7) Turn right, following the sign for Pic du Saint-Barthélemy. Continue climbing across open terrain until you reach the Étang du Diable lake at a fork marked on the ground by a GRP® signpost.
Leave this path and follow the narrow trail on the right, which leads to the rocky banks of the lake after a rather difficult descent.
(8) Turn around.
YellowPR® markings
(7) Turn left to rejoin the uphill route to the old Porteille quarry.
(4) Turn left and walk alongside the two quarries. Continue to a signpost on the left, where you can either follow the path on the left leading to the Cabane de l'Orri or continue on the track you have been following.
(9) Opt for the second option. Pass the Cabane du Vacher and begin the descent. Reach the ruins of the old Fangas mine building, pass them and arrive at a large open flat area.
(10) Turn left: the IGN trail is no longer valid because the passage through the mine is blocked due to rockfalls and the site is fenced off. Pass some rusty remains from the mining days and continue downhill through the woods to the Étang de Moulzoune.
(11) Enjoy the charm of this peaceful site, then continue along the track, which winds its way back to the car park (S/E).
