Along with Rrajcë, it forms the transnational Ancient and Primeval Beech Forests of the Carpathians and Other Regions of Europe, encompassing 94 nature sites, in 18 European countries.

Spanning 3,000 hectares (30 km2) and situated in the basin of the Gashi River, the valley is characterized by a rugged and fragmented alpine terrain made up of magmatic and limestone formations.

The region has a mountainous Mediterranean climate with harsh winters and cool summers, abundant clean waters, and glacial lakes formed in cirques and morainic deposits.

The Gashi valley region is rich in cultural heritage, with many symbolisms from, Eposi i Kreshnikëve, Muji and the mountain fairy, the legend of Mic Sokoli and others.

Worthy of mention are the many ethnographic values in traditional clothing, most notably the Xhubleta, an undulating, bell-shaped folk skirt, hung on the shoulders using two straps, worn by local women since at least the 17th century.