Hiking - Laurichard Mountain Pass

Permafrost and rock glacier... a hike in the land of cold pebbles. 

On the track, at an altitude of about 2500 m, look about! In the South/South East  direction you can see at the foot of the Western peak of the Combeynot four white  spheres (about 35 cm in diameter)... they are  the landmarks enabling scientists to  measure the evolution of the rock glacier at  Laurichard.

Put a top in your bag; the weather changes so quickly at these altitudes.