Come in Chartreuse, at the Camping Ourson

At Entremont-le-Vieux the are clear sins for the Desert, the camping is 100m from there !

The description of the routes according to your origin are described in the itinerary page of the home booklet

GPS : N 45°27' 9" / E 5°52' 59" -- 45,4526 / 5,8831