Circuito de senderismo de 108.97 km desde Préversin. El desnivel positivo es de 7651 m, con una altitud entre 605 m y 1904 m. Duración estimada: 45 h 10 min. Municipio de salida: Préversin (Auvergne-Rhône-Alpes, France).
Esta ruta incluye 18 subidas significativas. Con un desnivel acumulado de 4890 m a lo largo de 32.86 km, con una pendiente media del 14.9%.
- Climb 1 (at km 4.02 km): +464 m over 3.54 km, average slope 13.1%
- Climb 2 (at km 10.77 km): +400 m over 3.56 km, average slope 11.2%
- Climb 3 (at km 12.61 km): +115 m over 575 m, average slope 20.0%
- Climb 4 (at km 21.52 km): +111 m over 603 m, average slope 18.4%
- Climb 5 (at km 31.07 km): +788 m over 4.48 km, average slope 17.6%
- Climb 6 (at km 33.42 km): +53 m over 322 m, average slope 16.5%
- Climb 7 (at km 46.80 km): +619 m over 3.67 km, average slope 16.9%
- Climb 8 (at km 48.98 km): +76 m over 507 m, average slope 15.0%
- Climb 9 (at km 51.60 km): +109 m over 1.02 km, average slope 10.7%
- Climb 10 (at km 54.08 km): +158 m over 1.24 km, average slope 12.8%
- Climb 11 (at km 63.59 km): +601 m over 2.98 km, average slope 20.2%
- Climb 12 (at km 68.09 km): +410 m over 2.02 km, average slope 20.3%
- Climb 13 (at km 74.89 km): +66 m over 732 m, average slope 9.0%
- Climb 14 (at km 84.19 km): +139 m over 1.14 km, average slope 12.2%
- Climb 15 (at km 85.78 km): +184 m over 1.09 km, average slope 16.9%
- Climb 16 (at km 93.11 km): +408 m over 3.36 km, average slope 12.1%
- Climb 17 (at km 98.30 km): +158 m over 1.43 km, average slope 11.1%
- Climb 18 (at km 105.19 km): +31 m over 586 m, average slope 5.3%
