From Perouges to Bugey

Cerin quarry trail (ENS de l'Ain)

Exceptional geological site of limestone rock. The ideal place to go in search of fossils! Playful and explanatory stations guide you in discovering the historical and natural riches of this site: archaeology, biodiversity...

Distance : 2.2 km
Duration : 1 p.m.
Level : Moderate
Elevation : 200 D +
Walking
Cerin quarry trail (ENS de l'Ain)
Distance : 2.2 km
Duration : 1 p.m.
Level : Moderate
Elevation : 200 D +
Walking
Departure: Marchamp
Loop
Stones, Earth, Not suitable for pushchairs
Pet Friendly
The start from the stairs through the woods is a little steep for about 200m.
Download the circuit: GPX JPG Roadmap

Along a short and easy route, the interpretation stations immerse you in the history of this unusual quarry. First exploited for its lithographic limestone, quarried for use in stone engraving printing throughout Europe. In the XNUMXth century, a team of archaeologists revealed a quantity of fossils of all kinds (reptiles, fish, fauna, flora, giant tortoises, etc.) testifying to the very distant past of a tropical lagoon in this corner of the mountain, today an integral part of the Bugey massif.

The Cerin museum, opposite the start of the walk, welcomes the public to discover the main geological principles and presents the results of the archaeological excavations of the quarry.

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Advice from the Office

In summer, the Cerin museum, at the foot of the quarry, has a pleasant little terrace to cool off after the walk in the quarry!

In case of rain

Do not panic ! Here are all our sheltered activities.

On the way back

To bring back a souvenir or something to treat yourself, stock up on local products from Pérouges in Bugey.

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