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Parking at Carrefour des Grands Feuillards, where the Route de la Plaine de la Haute Borne is closed to traffic coming from the D301 (Route ronde). The junction of the Route de la Plaine de la Haute Borne is located on the D301 between the D152, which connects Ury and Fontainebleau, and the D409, which connects Arbonne-la-Forêt and Fontainebleau.
No signposts
(S/E) Head south-east and take Route de Joinville, passing a small car park on your left and a sort of portico on your right. Continue straight ahead into the forest and cross Route du Décagone and Route Circulaire. Cross the D152 (
very busy road) and continue on the path opposite, still on Route de Joinville.
(1) At the crossroads, take thesecond left, Route du Chêne aux Chapons.
Red and white markings
At the next junction, continue straight ahead on theGR®13. Cross the D301 ( with caution) and take the Route du Mauvais Passage opposite.
No markings
(2) At the Carrefour du Lièvre, take thesecond left, still on the Route du Mauvais Passage. Walk north at the foot of a hill with steep slopes on the right. Cross the Route des Soupirs and then the Route des Regrets.
(3) At the crossroads, turn right (east) and, at the fork immediately ahead, take the left-hand path (east-north-east), still following Route du Mauvais Passage. Pass between two hills covered with rocks. At the next crossroads, take thefirst left (west), Route de Valmy.
(4) Cross the D152 ( very busy road) and take the path opposite that starts behind a forest barrier. Climb steadily between two slopes covered with mossy rocks and fern undergrowth.
(5) At the top, at a crossroads (sign for a nature reserve), turn right at an acute angle. The path quickly leads to Carrefour Paulet. Turn left and descend Route de la Chimère. The path, which appears to be little used, gradually becomes overgrown with ferns. You will reach Carrefour de l'Épicéa, which is appropriately adorned with a spruce tree in the centre.
(6) Then take thethird right, Route Paulet. Walk north, cross an unmarked path and then Route d'Achères. At the next crossroads, turn left onto Route du Petit Feuillard and climb slightly.
(7) At the top, at a crossroads, turn right at an acute angle onto a path that is congested at the start. Descend steeply. You will come out onto a wide path ( Route de Milly) and follow it to the left for about a hundred metres.
(8) Then turn right onto Route du Venin. The path is not very clear among the ferns, but the sign marking it is clearly visible. Follow this path and zigzag uphill through rocky terrain. There are a few green markers along this climb. At the top, cross a perpendicular path and continue straight ahead downhill. The path is not very well marked and is located further west than the old path shown on the IGN map.
(9) You will come out onto a wide path (the Route d'Occident) and follow it to the left. Go straight ahead (west) and climb gently. After a right-hand bend, at a crossroads (plot no. 137), turn left. Cross the D301 ( limited visibility) and continue straight ahead, still on the Route d'Occident. Cross the Route de Montpensier and walk along a plateau on your left.
(10) At the crossroads, take thesecond left, Route de la Louve. The path soon turns right and heads west. At the crossroads (plots nos. 782, 783), go straight ahead. Walk between the Rocher de Milly hill on your left and an open area with ferns and rocks on your right. At the next crossroads, continue straight ahead on Route de la Louve and ignore the signpost indicating a left turn. You will arrive at Carrefour de la Louve.
Yellow markings (rare)
(11) Turn right onto Route du Louvard. The path climbs with a few exposed rocks.
(12) At the top, you will come to a path; follow it to the left. After about 150 m, leave this path and turn left to quickly reach the Hurlevrent viewpoint (bench, railing).
(13) Retrace your steps.
(12) Don't miss the start of the path between the rocky outcrops on the right (there are no arrows or markers here). Continue to the Carrefour de la Louve.
No markings
(11) Continue straight ahead on Route du Louvard, a path that soon climbs with a few short hairpin bends between the rocks. Descend zigzagging. Cross Route de Milly and continue opposite, still on Route du Louvard. Then cross the embankment of the Loing underground aqueduct and you will quickly reach a T-junction (plot no. 608).
(14) Then turn left and follow Chemin des Pieds Pourris (signposted further on). Climb a steep slope. Cross Route d'Arbonne à Ury and descend. Cross the Route de la Goulotte (plot no. 610) and climb back up the path marked in places with pink dots. Cross a vague path and walk across a plateau landscape. At the junction with a path not shown on the map, first turn left then right and climb up the path. Descend to reach the Route de la Gibelotte.
Red and white + green and white markings
(15) Follow this stony path to the right and immediately ignore a path branching off to the left. Descend gently, stay on the marked path and ignore a few vague paths branching off to the right.
No markings
At the crossroads, turn left (leaving theGR® trail on your right). At Carrefour du Bois Rond, continue straight ahead on Route du Larron. Climb up the winding path. At a fork, take the right-hand path, which is better marked.
Green and white markings (rare)
(16) At the T-junction (plot no. 619), turn left. At the next crossroads, take thesecond right, Route Circulaire. Continue straight ahead (south-east) and cross Route d'Achères in Arbonne.
(17) Cross a small tarmac road (no traffic) and continue straight ahead on Route Circulaire. Stay on this path, heading generally south-east. Cross Route du Gros Buisson, Route du Grelot, Route d'Achères à Fontainebleau and Route du Fourneau in succession.
No signposts
(18) At the crossroads, take thesecond left onto Route Clémentine. Continue straight ahead (north-east) and cross Route du Prince Royal, Route de Recloses and Route du Décagone in succession. This will take you to Carrefour des Grands Feuillards (S/E).
Visorando member
Moderate 
Easy 
