Grotte de l'Ours (Bear's Grotto) is located on lower Sangle of the rocks of Belles-Ombres on Chartreuse Regional Natural Park in Isère department of France.
Sangle is a local name for a no maintened path on cliff side on Chartreuse range. The opening on the side of the grotto has an estimated span of 2.0 meters. IGN topographic map Top 25 Chartreuse Nord # 3333 West (pleat D8).