Saint Jacques de Compostelle - Bourg en Bresse to Ambronay

Jacobean heritage:
In Bourg en Bresse, you'll find heritage sites such as the collegiate church of Notre Dame, the royal monastery of Brou and Saint Martin du Mont.

Route

Day 1:
Departure from Brou church (46.1979, 5.2353 *).
The route skirts the SE monastery along the Hélène de Savoie alley to the Boulevard Charles de Gaulle, which you cross at the crosswalks to take the chemin de la providence. After 700m, turn left onto the track leading down to the Reyssouze under the high-voltage power lines to the entrance to Parc de Bouvent. Then take the chemin du lac, pass under the bypass, the chemin de Bouvent, still on the cycle track, and the route de Revermont for 800m, which is dangerous because there is no shoulder.
At Bois des Bletonnées, turn right (SW): Chemin de la Goyatière then left-right into Chemin du Gourd (SSE). Cross the Reyssouze then, at the end, turn left onto the Montagnat village road. 2nd right, take the Chemin de la Craz down to the pond. Cross the Reyssouze again, then turn 3rd right onto chemin de la fruitière. At the end, left-right, follow the old wall of Château de Rivoire on chemin de Ravary to cross (SE) the A40 freeway. Continue along the Reyssouze, crossing it at "le Montet". At the end of chemin du Montet, turn left onto chemin de Mas Cruzin, where you cross the Reyssouze again and continue to the Tossiat cemetery. Turn right onto the route de Montagnat, then left onto the route de Journans to the village entrance. Take the small footpath around the large bend to rue du moulin for 50m. At the moulin(1), turn right onto chemin de la mine, then chemin des feuillées de Tossiat (GR®59 and GRP® tour du Revermont). At the fork, still on the GR®, turn left onto the Chemin du Fayet. At the end of the descent into the hamlet of Fayet, turn right onto chemin de la tour, then slightly right above a Cerdon winegrower onto a track.
Cerdon winegrower. At the end of the descent, take the road on the right, then the 1st path on the left to Saint-Martin du Mont(2), a stopover village. The gite d'étape (sleeps 8) is on the left 300 m after the cemetery. The Gite de France, formerly the presbytery, is behind the church.

Day 2:
Leaving the village, take rue de la mairie (S) towards Place des anciens combattants. Go slightly downhill to the left to take the "montée de la Machuronne" road to the hamlet of "Confranchette d'en bas". At the hamlet's crossroads, turn right towards "Crozat", then leave the Turgon road on the left onto a wide track that joins the Suran river at "les Cochatières". Stay on the "Moulin des Craipes" road until you reach the Suran bridge, which you must cross to go up (SE) towards Saint André, the freeway and Pampier (on the GR P® Tour du Revermont to Pont d'Ain). At the bus stop, take (S) route de la ville for 700m, turn right onto chemin du Solliat, then left at the end onto avenue Philibert le beau for 250m.
Still on the GRP ®, turn right towards the Catherinette chapel. Continue along this wide track to the "montée des Jouberts" path, which leads down to rue Louise de Savoie, where it continues eastwards for 50m. Turn right down the staircase to the downstream end of the old mill, then join the banks of the River Ain as far as Quai Justin Reymond, then take the staircase to the bridge. After crossing the Ain, take the left-hand sidewalk and go straight ahead, following the cycle path, to the Pont Rompu roundabout. From there, left to the Super U roundabout, then right on rue de la Batie.
At the next roundabout, turn left to go around the Maison du fromage and find yourself on the RD1084. Take a sharp right (south) past a field of solar panels to Chemin de la Vigne Orset, opposite the quarry ponds. Turn left on this path for 200m, then right for 600m at the signs (history, flora and fauna), then right again to continue around the pond. 200m further on, you'll see the Via Lugdunum markings(3) in the direction of Ambronay.
The rest of the via Lugdunum itinerary is described in the red guide. The markings become classic from the junction

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