The Devès is a vast basalt plateau in the Velay mountains of the Massif Central, located in Haute-Loire, forming a natural region of France.

The most emblematic of the plateau are Lac du Bouchet, the narces of La Sauvetat,[5] and the Limagne marsh.

There are about 150 of them, forming either a chain of small forest-covered hills along a north–south axis or appearing as features in the middle of fields.

[7] The climate is cold but relatively dry; the Mounts of Cantal and Margeride provide a sheltered position leading to reduced precipitation (about 850 mm/year on average).

In winter, snow remains on the ground for several months, and the forests and pastures are swept by the "burle," the local name for the blizzard.