Gorge Aux Merisiers

Gorge aux Merisiers is a directed biological reserve (réserve biologique dirigée) located within the state forest of Fontainebleau, in the Seine-et-Marne department east of Paris. It forms part of a network of fourteen such reserves designated across the Fontainebleau forest, set up to protect the most valuable natural areas of this extensive woodland from heavy visitor pressure and past exploitation.

What makes this place distinctive?

The name refers to the wild cherry trees (merisiers in French) once found, or still present, in this part of the forest — a distinctive element of the local vegetation. The reserve itself is centered on a gorge cut into the sandy, rocky terrain typical of the whole Fontainebleau massif, an area famous for sandstone formations shaped over time by erosion.

Within the reserve, visitors can find the remains of old sandstone quarries (anciennes carrières de grès) — traces of centuries of stone extraction once used for construction, including buildings in Paris. Today these quarries form part of the historical and natural landscape, standing as evidence of past human activity in this section of the forest.

Another notable feature is the presence of sunken paths (chemins creux) — narrow tracks worn deep into the ground over long periods of use by people and animals. This kind of terrain is characteristic of the sandy forest areas of the Île-de-France region and gives the site a distinctive, picturesque character.

What rock formations can be seen here?

Gorge aux Merisiers is known for its sandstone rock formations — blocks and outcrops that draw both casual walkers and bouldering enthusiasts, a sport especially popular throughout the Fontainebleau forest. The uneven terrain, with its rises and hollows, offers varied views over the surrounding woodland.

Is it a popular hiking destination?

Yes — the reserve is included in some of the well-known hiking routes through the Fontainebleau forest. One popular loop trail, around 16.5 km long, passes directly through the Réserve Biologique Dirigée de la Gorge aux Merisiers, connecting it to other scenic and natural landmarks in the area. The route is generally rated as moderate in difficulty and is a popular choice among visitors exploring the Fontainebleau region.

Why is it worth a visit?

Gorge aux Merisiers combines natural and scenic value: diverse forest vegetation, terrain shaped by sandstone erosion, remnants of former quarrying activity, and a network of historic sunken paths. Its status as a directed biological reserve means the area receives special protection — its natural features are safeguarded while still allowing visitors to walk through and observe the surrounding nature.

Frequently asked questions

Where exactly is Gorge aux Merisiers located? In the state forest of Fontainebleau, in the Seine-et-Marne department, in the Île-de-France region of France.

What is a directed biological reserve? It is a category of protected area used in French state forests, covering zones of particular ecological value and managed by the Office National des Forêts (ONF).

Can you hike there? Yes, the reserve is open to walkers and forms part of popular hiking routes through the Fontainebleau forest, including a loop of around 16.5 km.

What else is worth seeing nearby? The remains of former sandstone quarries, the characteristic sunken paths, and rock formations typical of the wider Fontainebleau massif.