The history of Belluno’s Dolomites is very long and complex, beginning more than two hundred millions of years ago, among warm tropical seas. Most of the territory is set on sedimentary rocks, excluding the Val del Mis and Imperina valley where you can find very old rocky outcrops having metamorphic origin.
Nowadays ,especially in the National Park area, it is possible to see large grassy valleys, wide and deep valleys, sunny and broad rock faces , but also dark ravines, cliffs hanging over dark pits, high and lonely valleys, tormented plateaus where the karstic rocks allowed the development of a subterranean landscape made of pits, fissures, halls and galleries which penetrate deep into the bowels of the earth.