Grès d'Annot, Sandstone formations in Annot, France.
Grès d'Annot is a collection of natural sandstone blocks scattered across the landscape, forming multiple geological levels and passages. The rocks create a maze of pathways and gaps that visitors walk through and around.
The sandstones formed about 40 million years ago during the Eocene period, when sediments accumulated in ancient marine environments. Over millions of years, water and weathering shaped the raw deposits into the formations visible today.
The rock formations are known locally by names such as Jardins du Roi and Chambre du Roi, which visitors encounter while exploring the site. These names show how residents have woven the stones into their sense of place.
The site is best explored on foot, with paths leading between and over the rocks. Sturdy footwear and care at steep and uneven spots are important, especially after rain when surfaces become slippery.
The site contains dozens of rock shelters and natural passages carved by centuries of erosion. The Portettes arch and Roubine shelter are especially striking examples of these water-formed structures.
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