FR-29. La Roche Percée de la Muzelle is located above Lac de la Muzelle (Muzelle lake), in Ecrins National Park, in Isère department of France. The long distance footpath GR 54 crosses the opening which is situated close to
La Cheminee de Fee . IGN topographic map Top 25 number 3336 east Les Deux Alpes pleat E3. La Roche percee is located by red star at place of interest on the map.