Walk from the Plateau d'Assy to Lac Vert via the Nant Bordon footbridge

Here's a reminder so you never confuse hornbeam and beech again! The beech leaf has a smooth, slightly fuzzy edge, whereas the hornbeam leaf has a serrated edge. Beech (Fagus sylvatica) belongs to the Fagaceae family, together with oak and chestnut. The beech blooms every spring but only yields fruits every 5 years. The beechnuts resemble small triangular chestnuts, which are loved by birds, deer, wild boar, etc.

A nant is a term used to refer to a mountain stream. This environment is very difficult for aquatic life. The old road leading to the Lac Vert was destroyed by an overflow of the Bordon nant as a result of extreme weather. 100 years earlier, a major landslide caused the demise of a magnificent lake, the Lac de Chéde.

Let's enjoy the mountain flowers without picking them, let's walk on the signposted trails and avoid trampling the natural environment around us, let's close the gates to the pastures to respect the work of the shepherds. Nature is our common home, a living space for wildlife and biodiversity as well as a working space. Every gesture counts, no matter how small, so spread the word to your neighbour!

This lake of extraordinary colour was most likely formed when the Dérochoir ( Fiz ridge to the north) collapsed in 1471. There are several explanations for its emerald green colour, including the surrounding vegetation, most of which consists of spruce trees that are reflected in the water. But the presence of blue-green algae or cyanophyceae in the lake is also a likely cause. The water originates from springs that irrigates the lake from both the surface and the deep depths.