Treska (Macedonian: ??????) is a river in the western part of the Republic of Macedonia, a right tributary to Vardar. It is 132 km (82 mi) long, and its basin is 2350 km².It rises in the Stogovo mountain at an altitude of around 2000 meters, and flows eastwards through the valley of Ki?evo. At Makedonski Brod it turns northwards, flows between the mountains of Suva Gora and Karadžica, finally flowing into the Vardar in the Skopje suburb Gjor?e Petrov.Two dams have been built on Treska:in 1937 the Matka dam and lake near Skopjein 2004 the Kozjak dam and lake