Refuge Robert Blanc is a refuge in the Alps located on the route of a popular walk that is roughly how long?
170 km
Title: Tour du Mont Blanc
Passage: The Tour du Mont Blanc or TMB is one of the most popular long-distance walks in Europe.  It circles the Mont Blanc massif, covering a distance of roughly 170 km with 10 km of ascent/descent and passes through parts of Switzerland, Italy and France.
Title: Refuge du Cuchet
Passage: Refuge du Cuchet is a French refuge in the Alps located in Vanoise National Park, Savoie.
Title: Refuge Robert Blanc
Passage: Refuge Robert Blanc is a refuge in the Alps at an altitude of 2,750 m, located on the route of the Tour du Mont Blanc.
Refuge Robert Blanc Tour du Mont Blanc