The Gashi (Albanian: Lumi i Gashit) is a 27-kilometre-long (17 mi) river located in Tropojë, northern Albania.

[1] The nature reserve forms a part of the European Green Belt and has been declared a UNESCO World Heritage Site within the Primeval Beech Forests of the Carpathians and Other Regions of Europe.

The river is located in the eastern part of the Albanian Alps at 2,175 m (7,136 ft) above sea level.

The river is particularly known for the diversity of flora and fauna and is surrounded by swamps and canals that drain the whole local basin such as the region of Malësia e Gashit within the Albanian Alps into the Adriatic sea.

The fauna is represented by 64 species of mammals, such as the brown bear, gray wolf, chamois, lynx, roe deer, wild boar, western capercaillie, golden eagle, Eurasian otter and 14 species of amphibians.