Circular route of the Troche starting from Lozère

Depart from Lozère station on the RER B line.

(S/E) Enjoy the view of the Square du Cèdre in Lozère. Exit the station via Rue Charles Péguy. Follow this street to the right, then turn left onto Rue Henri Poincarré. Keep left at the bend onto the Mail du Manoir and enter the Parc Henri Poincaré.

(1) Cross the park. At the junction inside the park, keep left and exit to the right onto Rue du Moulin. You will then come to Rue Henri Poincarré and his second home at number 68.

(2) Turn left. Immediately after crossing the Yvette, turn right onto the path running alongside the river. Continue along the river until you reach the bridge. Cross the river and follow the shore of Lac de Lozère to the right to reach Rue Alfred de Musset.

(3) Turn right onto this street. At the junction, turn left onto Rue Jean Richepin, then left again until you reach Rue Théodore de Banville. Continue in the same direction until you reach the railway line.

(4) Cross the tracks via a footbridge. First turn right then left onto Chemin des Taupinaux. Continue along the Sentier du Guichet in Lozère, which begins just before the end of the path. Keep left onto the Sentier du Champs des Cordes, which further on becomes the Sentier de Châteaufort. At the junction, take a sharp right onto Rue du Châteaufort, then right again at the bend onto Passage du Rocher. At the street, turn right, then left, then right again to reach Rue du Rocher. Take the first left and follow Rue de Corbeville to the edge of the Eugène Chanion Inter-municipal Park. Enter the park and continue straight on until you exit: turn left onto Chemin de Corbeville à la Vauve. Re-enter the park by taking the first path. Continue straight on at the first three junctions. Keep left at the fourth and fifth, then continue straight ahead until you reach the quarry.

(5) Exit the quarry via the opposite side. Go under a footbridge, then keep left until you reach the park exit: turn right onto Chemin de Corbeville à la Vauve. Continue straight ahead until you can go no further. Then first turn right then left to enter a wood.

(6) Cross the woods, continuing straight on until you reach Chemin de la Humière et des Joncherettes. Continue until you reach the path coming from the right, Voie de l’Ouest.

(7) Take this path, which leads up some steps and then onto a street: head straight on along the street, then take a sharp left onto Rue de la Vigne de Lozère. At the bend, take the path, then turn left onto Rue de la Butte Rheims. Continue straight on to pass under the railway line. Go straight on at the next junction, then onto the D988; turn left, then right at the woods.

(8) Enter the Bois de Fourcherolles. Cross the woods, continuing straight ahead until you reach the footbridge. Turn right at the footbridge and keep to the left to come out onto Avenue du Général Leclerc, then take Rue de Fourcherolles straight ahead. At the second bend, turn left onto Allée des Pêcheurs, then right onto Rue des Fraisiers. First turn right then left to reach Avenue Fernard Forest. Jacques Audiberti lived at number 31 Rue du Moulin.

(9) Follow this road to the end and turn left onto the D680, pass the Maison des Pins and continue to the station (S/E).

View of the Square du Cèdre de Lozère (S/E):
From the station, looking up Rue Henri Poincaré, you will see a square which houses, in a small chalet, a cross-section of the trunk of an 189-year-old Lebanese cedar, which was felled by the storm of 26 December 1999. An emblem of Lozère, it was replaced a year later.

Henri Poincaré Park (1):
The former park was acquired in 1828 by Edme François Jomard (1777–1862), a graduate of the École Polytechnique and a geographical engineer (he took part in Bonaparte’s Egyptian campaign and founded the Maps and Plans Department of the National Library).
His manor house was restored in 1995. Now owned by the City, the eastern part of the park features several remarkable trees for which it is renowned: an Atlas blue cedar, a Scots pine and two enormous plane trees overlooking the Maison de quartier Audiberti.

The House of Henri Poincaré (2):
At the corner of the street that bears his name and Rue du Moulin, at No. 68, stands the second home of Henri Poincaré (1854–1912), the last true polymath: mathematician, physicist and philosopher.

Lac de Lozère (3):
Very close to the Yvette, slightly upstream from the mill (one of the 49 that once dotted the course of the river and its tributaries), which was destroyed in a fire in 1952, a recreational lake known as Lac de Lozère was created at the end of the 19th century. Covering an area of 8,527 m², it features a small island with a recently restored gazebo. Its banks are lined with trees and wild grasses. The surrounding area makes for a peaceful spot, complete with fishing jetties and picnic tables.

Chanlon Park and the former Troche quarry (5):
On the edge of the plateau lies part of the working face of a former sandstone quarry, operated throughout the 19th century and into the early 20th for the production of paving stones for the streets of Paris. The region’s paving stones were indeed renowned for their resistance to frost. These stones, cut on site, were transported down to Lozère. A railway halt was established there, with a branch line for goods—mainly paving stones—when the Sceaux line was extended to Orsay in 1854. In 2018, the Essonne Departmental Conservatory classified this quarry as a ‘geosite of national interest’ and installed educational panels there.

The home of Jacques Audiberti (9):
Jacques Audiberti (1899–1965), writer, poet and playwright, lived at 31 Rue du Moulin from 1951 until his death.

The House of the Pines (S/E):
Located at No. 12 Rue Péguy, Charles Péguy lived here from 1908 to 1913. A writer and poet, he founded the Cahiers de la quinzaine in 1900. A commemorative plaque was affixed on the initiative of Roger Ferdinand (1898–1967), a playwright who lived in this house from 1938 onwards.