NARSE D'ESPINASSE AND PUY DE L'ENFER
Narse volcanoes are interesting in more than a geological way or in the geological and vegetation evolution. The association of a large circular crater to an increasing projection of projections always signs the presence of a maar. This slightly elliptical explosion crater - 400 m over 600 m - is the result of the violent encounter of a basic magma - like the Tazenat gour - and a stream. The series of explosions entama the crystalline bedrock as with a gigantic sweat, probably some 11,000 years ago and simultaneously continued the construction of a classic strombolink cone: the puy of Hell whose careers show the interpenetration of different products from both volcanoes! Several millennia later, the lake became marsh - narse - and retained part of its original biotope, that of the glacial era where it began. Five fossil plants, including Siberian liguraria that collided in yellow all the narh in August, have allowed the site to become increasingly fragile today. Indeed, these plants of the cold are threatened by warming temperatures that accelerate the disappearance of the water body. Moreover, the gracile and willow willow of the Lapons has already disappeared and colverts and bushes are less assiduous on the site… The Volcans Park actively follows this problem - access from the N 89, to Randanne N 683 towards the Guéry and Mount Dore, then D 744 0 to Espinasse.
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