Starting in the town of Thann home of the La Vosgienne sportive this route takes in the Ballons d'Alsace and the Grand Ballon as well as a number of other cols en route. Leaving Thann on the main N66, after a short distance the route turns to begin the 5 Km climb of the Col du Hundsruck. It starts gently enough before rising up to 10% for the last kilometer, where the road descends to Masevaux. The Ballon d'Alsace can be climbed from here by turning right on the D446. However this route continues along an undulating route to the south side, which starts in the town of Giromagny. The 16 Km climb to the Ballon d'Alsace rises up through the trees where the gradient is always very pleasant. From the top the descent is wonderful with long switchbacks down to St Maurice sur Moselle. The main N66 is rejoined for 6 Km. At Le Thilot the route turns north then meets the road leading to the 5Km climb of the Col d'Oderen. Following the descent to Kruth the road turns north again and shortly after starts the long climb which eventually leads to the Grand Ballon. The road is never steep just long at 25 Km, a short descent with 7 Km to go gives some rest before the final haul to the top. Take care on the descent and the subsequent ascent of Coll du Silberloch as there are some curious (hairy) pave corners. The final descent leads to the town of Cernay, where the return to Thann is made.