Summary cross section of the central area of the rock-shelter.

US- 101: Humic horizon on silty-clayey colluvium and modern anthropogenic filling. US-108: Scree of quartzite boulders in silty-clayey colluvium. US-104: Strongly developed colluvium (Bt horizon). US-102: Solifluction layer made of reworked lœss and small cryoclastic quartzite boulders and gravels. US- 103: Lightly reworked lœss (M. Laforge & S. Sorin).