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Ile-de-France

Béorlots Sand Dune

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Places to see

Natural Monuments

France

Ile-de-France

Béorlots Sand Dune

10 people recommended this place

Recommended by 10 road cyclists out of 11

This Highlight is in a protected area

Please check local regulations for: Réserve de biosphère de Fontainebleau et du Gâtinais

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Location: Ile-de-France, France

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Best Road Cycling Rides to Béorlots Sand Dune

145

riders

1. Eglise de Milly La Forêt – Route Forestière de la Génisse loop from Bourron-Marlotte - Grez

129km

05:28

790m

Expert road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Expert

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2. Château de Fleury-en-Bière – Chateau Fleury en Bière loop from Yerres

109km

04:24

550m

Intermediate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Intermediate

Tips

Fabrice Rigalleau

July 25, 2022

The sand dunes of Béorlots are accessible by a paved road and constitute a unique testimony to the geological phenomenon which occurred in the forest of Fontainebleau at the end of the tertiary era thirty-four million years ago. At this time took place the last marine invasion of the Paris Basin, including the forest of Fontainebleau. As the sea retreated, it left behind a thick mantle of silica-rich sand. Then in the Quaternary were formed the famous sandstone chaos of the massif, and these dunes due to wind phenomena.

Yet these dunes are in danger. They were overgrown with tall pines. They were uprooted in 2001. But the pines, which grow easily in the open, are gradually coming back.

It is estimated that these quaternary dune fields, which appear here and there in the national forest, cover between 15 to 25% of the Massif de Fontainebleau.

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Olivier Poulenard

August 22, 2022

Surprising to see this dune in the middle of the forest of Fontainebleau

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Details

Informations

Elevation 160 m

Weather

Today

Saturday 4 October

18°C

8°C

100 %

If you start your activity now...

Max wind speed: 26.0 km/h

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Location: Ile-de-France, France

Béorlots Sand Dune

1. Eglise de Milly La Forêt – Route Forestière de la Génisse loop from Bourron-Marlotte - Grez

2. Château de Fleury-en-Bière – Chateau Fleury en Bière loop from Yerres

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