Geological nature reserve of Haute-ProvenceNature Reserve

Surroundings of Digne © © M. Cristofani / Hearts of nature / SIPA
Gorges du Verdon © © M. Cristofani / Hearts of nature / SIPA
Ammonite slab © © M. Cristofani / Hearts of nature / SIPA
Site of the sirenians of Castellane © © M. Cristofani / Hearts of nature / SIPA

Surroundings of Digne
Gorges du Verdon
Ammonite slab
Site of the sirenians of Castellane
The national geological nature reserve of Haute-Provence located between the Verdon and the Durance is labeled for the diversity of its landscapes, witnesses of the geological past of this massif and of the Earth. It is the largest reserve of this type in Europe.


Created in 1984 by decree, the geological reserve of Haute-Provence covers an area of ​​200 hectares between the Alpes de Haute-Provence and the Var. It concerns the Digne thrust sheet, the pleated arch of Castellane, the Digne-Valensole basin and the Provencal Var links. It protects and enhances geological sites, fossils in place, landscapes with folded and fractured layers.
The protection is based on two scales of limits. On the one hand, a set of 18 geological sites on which the extraction and collection of any fossil form are prohibited. On the other hand, a vast protection zone extended over 59 municipalities where the extraction of fossils is prohibited and the collection of naturally released forms is tolerated, if practiced in limited quantities. Among the geotopes highlighted, we can mention the ammonite slab of Isnards in Digne, the fossiliferous ichthyosaur sites of La Robine or the sirenian site of the Tabori ravine in Taulanne.

Labels & accessibility

  • Nature Reserve



  • Unguided individual tours permanently


  • Unguided group tours permanently


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Comfort / services

  • Parking
  • Free visits




All year.


St. Jerome Cathedral

Historic site and monument