Gour de Tazenat

The banks of the lake have a volcanic crescent moon shape (north, east and south) formed by projections arranged in layers.

The setting up of these initial projections corresponds to the beginning of the eruption when magma rises to the surface in contact with continental water.

It causes heavy explosions capable of breaking fragments of crystalline basement, and the appearance of volcanic bombs in cauliflower shapes.

Aquatic fauna consists of many perch and pike, together with carp, pumpkinseeds, roach, trout and other fish with white flesh.

Guy de Maupassant evokes the lake in his short story Mes vingt-cinq jours ("My Twenty-Five Days"), published in Various Tales in 1885 and in Mont-Oriol in 1887.