Lake Zaysan Between the Altai and Tarbagatai Mountains, Kazakhstan47.9N 83.8E
Lake Zaysan is a freshwater lake in eastern Kazakhstan, visible in this orthorectified image in a hollow between the Altai and Tarbagatai Mountains. It is the largest lake in the East Kazakhstan Province, with a surface area of approximately 1,810 km² (700 mi²).
The lake lies at the altitude 420 m, is 105 km long and 22–48 km wide, with the maximum depth 15 m. Since the construction of the Bukhtarma dam the lake has risen 6 m (20 ft) above its natural level.
Its major tributaries are the Kara Irtysh (Black Irtysh) and Kendyrlyk from the east, its only outlet is the Irtysh River (or White Irtysh). The lake is generally frozen from the beginning of November to the end of April.