Nature regions

Tajikistan is a major water source for Central Asia, and many wild and beautiful rivers flow across Tajikistan and along its borders, including the unruly Pyanj (which eventually becomes the Amu Darya) along the entire southern border with Afghanistan; the Syr Darya in the north, one of Central Asia's most important waterways; and the Vaksh, which flows from north to south from Kyrgyzstan to the Pyanj, and features the enormous scenic reservoir at Nurek, held back by the world's highest dam. Lakes include Lake Kara-Kol in Gorno-Badakhshan, a huge salty runoff lake in the middle of a vast breathtaking wilderness.