The view from this belvedere, which can be seen from Sur les Grès, overlooks the Flumen wind gap, cut into the Sur les Grès anticline. By digging deep gorges at the same time folding occurs, over tens of millions of years, the river has created a perfect cut into the many geological layers that are well visible on the Sur les Grès anticline upfold and shows the very core of the Jura’s folds.