Plovdiv Province includes parts of the Upper Thracian Plain, the Rhodopes, Sredna Gora, the Sub-Balkan valleys and Stara Planina, including its highest peak, Botev (2,376m). The main rivers in the province are Maritsa, Stryama, Pyasachnik. There are numerous dams, the most important of which is Pyasachnik. Mineral springs are abundant; there are several major spa resorts — Hisarya, Narechen, Banya and minor spas at Klisura, Asenovgrad, Kuklen, Rosino, Krasnovo, Stoletovo and others. There are many natural landmarks, especially in the Central Balkan National Park, including the spectacular waterfall Raysko Praskalo, the highest in the Balkans.