The Gashi (Albanian: Lumi i Gashit) is a 27-kilometre-long (17 mi) river located in Tropojë, northern Albania.It is a nature reserve, spanning an area of 3,000 ha (7,400 acres). 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.