The Trešnjica canyon is a natural good of extraordinary significance, which is placed under protection, in order to preserve the habitat of the population of natural rarity of the griffon soup. It is one of the most beautiful canyons and represents a habitat for 17 pairs of eagles of the griffon soup, which is still only inhabited in the Uvca canyon. The largest is the bird of prey in this region and it is fed exclusively to the remains of dead animals, and because of its exceptional sanitary role, we call it "Carem height and nature purifier".
Beloglavi is a endangered species that is subject to extermination and ecologists do everything to save them from disappearing. During the year, a female puts only one egg and for this reason it is extremely difficult to protect and preserve them from disappearance. Specifically for the Trešnjeva canyon is that every spring comes from the Drina to the natural mrest of the young fish, the "Queen of the Drina".