PG - La randonnée de la Pierre Grise

18.26 km loop hiking starting from Saint-Martin-de-Bavel. Elevation gain is 497 m, with altitude ranging from 301 m to 429 m. Estimated time: 5 h 50 min. Starting town: Saint-Martin-de-Bavel (Auvergne-Rhône-Alpes, France).

This hike includes 3 significant climbs. With a total elevation gain of 351 m across 9.35 km, with an average slope of 3.8%.

• Climb 1 (at km 2.81 km): +138 m over 1.97 km, average slope 7.0%
• Climb 2 (at km 9.73 km): +43 m over 747 m, average slope 5.8%
• Climb 3 (at km 24.08 km): +170 m over 6.64 km, average slope 2.6%