Observing the cliff on which Civita di Bagnoregio rests, you can notice various geological layers, including limestone bases, sandy clays, sands, and conglomerates. This deep heterogeneity is responsible for the extensive erosive phenomena, which appear as deep 'cuts' on the slopes of the hillsides, leading to the characteristic lack of vegetation in the valley. These layers rest upon those created by the volcanic activity of the Vulsinian volcanic complex. The enchantment of the badlands makes the landscape in which Civita seems nestled truly unique. It has even been recently referred to as the 'Pearl of the Badlands.' These are distinct erosion forms shaped by atmospheric agents over millennia.
Known as the 'Forre della Teverina,' this territory encompasses the municipalities of Bagnoregio, Castiglione in Teverina, Celleno, Civitella d'Agliano, Graffignano, and Lubriano.
The panorama is highly evocative, especially when admired at sunset.