Head to Gergueil. When you reach the church, go down Rue de la Fontaine, which starts next to the town hall. Immediately after the wash house, turn left and head for the village hall car park (on the right). Park here.
(S/E) Head towards Rue de la Fontaine. Take a look at the beautifully restored wash house opposite the village hall. Opposite, on the other side of the street, is a walled spring. Walk up Rue de la Fontaine to Place de la Mairie and turn left onto Rue Haute (D104) to reach the junction of the D104 with Impasse de la Fin de Chêne, just before the southern exit of Gergueil. Turn right onto the gravel path.
(1) Follow this same track for nearly 6.5 km. Shortly after it begins, it turns into a dirt track. At Combe aux Grives, follow the bend to the right. About 1 km later, you’ll reach the Grandes Combes junction.
(2) Continue straight on, uphill. The gradient levels out; keep on the main path, ignoring the side paths and in particular the white path of the southern main ridge branching off to the right.
Head straight ahead along the Route de Gergueil Haut. You’ll pass an imposing hunting lodge (on the left). After a right-hand bend, you’ll reach a 180° bend on the left.
(3) Ignore the path on the right and head down towards Saint-Jean-de-Bœuf via the Route de Gergueil, which is tarmac-surfaced again. Once near the centre, at a fork, turn left onto Rue Forache, with the church in view straight ahead.
(4) In front of the town hall, head up to the left along Chemin Creux, which passes to the left of the church. At the top of the hill, on the right, is an imposing pond, surrounded by a 19th-century stone wall. At the next crossroads, a few metres further on, keep left, continuing along the tarmac road.
(5) Follow this road, known as "Les Champs du Tilleul", until you reach the fork in the road before the Belle Émilia farm.
(6) Turn left onto the Chemin du Creux des Chaumes, which passes in front of the farm and heads straight into the woods. You’ll come to a fork.
(7) Turn right, entering the former grounds of the German camp, where some remains can already be seen (radar base, etc.). The path heads straight on. At the next junction, turn right and continue straight ahead until you reach further remains (concrete garage slabs).
(8) The “Dackel” (Basset in French) radar station, which served as accommodation for the German army between 1942 and 1944. Explore the visible remains, following the paths (radar bases, offices, accommodation, canteen, kitchen, hall, toilets, swimming pool, bunkers, storage rooms, parade ground, garage, kennels, well, etc.). See Practical Information.
Head towards the visible remains (concrete garage slabs) and continue along the main path that crosses the site. Before the block of toilets (a raised concrete esplanade), turn right onto a path, guided on the left by a low stone wall. The low wall breaks off and then resumes. Green arrows on trees point the way. You will emerge into a large clearing.
(9) In the clearing (presumably a former meadow), take the grassy path to the right, leaving the track that continues straight ahead into the woods.
Cross the clearing diagonally along this grassy path until you reach a white, carriage-accessible track that gradually comes into view as you proceed.
(10) Once on this track, take a sharp left-hand bend and head down into the woods. At the bottom of the hollow, ignore the side paths (to the right and left) and continue straight ahead along this same track to reach a wide crossroads. A hunting lodge is visible to the left of the crossroads (elevation 590m). Turn right.
(11) Continue along the white track heading south, then take thesecond forest path branching off to the left (after more than 300 m – plot 27).
(12) Follow this path, which narrows, straight ahead for about 600 m, before coming to impenetrable vegetation that has overgrown it. Go round the obstacle to the left for a few dozen metres (visible tracks) to get back on the right and resume the original route on the same path. It ends at another cross-path. There is a large stone marker.
(13) Turn left. Follow this new path for about 40 metres until you reach a crossroads of tracks. Turn right just before a pine copse (plots 54 and 57). Head straight on, cutting across a forest track (elevation 557), and follow it up until you come out onto a white, motorable track.
(14) Turn left. Follow this white track for about 200 m before taking the first path on the right which leads to the Roche Chèvre cave (a rocky outcrop visible from the white track).
(15) Descend into the cave. After the visit, retrace your steps to rejoin the dirt track and continue along it, turning right. Walk steadily, through some pine woods, for about 2 km until you reach a sharp bend to the right at a place called La Croix Bielle (elevation 567 m).
(16) Turn right, staying on the same white path, and head straight on to the D104 below.
(17) Cross the road and head down the forest track opposite for 140 m until you reach a crossroads. Turn left.
(18) Head north-north-east along a grassy path through pine woods to the 500-metre mark and the junction on the right with a larger track coming from Semezanges. Ignore this track.
(19) Continue straight on along the grassy path at the bottom of the valley for nearly 2.3 km, before arriving directly beneath the first high-voltage power line. At a four-way junction.
(20) Take the track on the left. Walk up the Combe aux Renards for about 100 m, until you reach the first path on the right.
(21) Follow this path to the right. It climbs steadily through woods and fields until it reaches a sports ground, then a tarmac road that takes you back to the car park at the Gergueil village hall (S/E).