To the west and northwest, you see the Causse Méjean and Causse Sauveterre; further west, the Causse Noir and the Causse du Larzac. On these large, creviced limestone plateaux, water rapidly disappears into the ground and from there into rivers, which have carved out impressive gorges. Straight ahead in the far distance is Mont Lozère, which gave its name to the département. Where the Causses are arid, Mont Lozère is covered by a network of streams (cf. Runes and Lozérette waterfalls) that irrigate its meadows. In between the two lie the abrupt silhouettes of the Tarn, Mimente and Tarnon valleys.