The Bâc river valley presents one of the most important centers of human habitat concentration since ancient times. This fact stimulated the interest towards studying this ecosystem, and a series of geographical, historical and literary descriptions appeared. They reflected the specific nature of this habitat, sometimes in a mystical form, in particular, with reference to some enigmatic elements of the valley. The morphology of the Bâc river valley is briefly characterized in the work. In particular, there are presented the opinions of scientists, researchers, historical and cultural personalities regarding one morphological phenomenon in the Bâc valley - the Bâc Gorges.