Zhamantuz, Zhangeldi District

Zhamantuz (Жамантұз) is a salt lake in the Zhangeldi District, Kostanay Region, Kazakhstan.

The lake lies 17 km to the south of Kokalat town. The name Zhamantuz, meaning "bad salt" in the Kazakh language, is of nomadic origin.

Geography
Zhamantuz is an endorheic lake of the Turgay Depression. It is part of the Turgay river basin. The lake lies at an elevation of 111 m. The Turgay flows about 15 km to the northwest of the lake.

Zhamantuz has an elongated shape, stretching for over 5 km in a northeast–southwest direction. The lake fills yearly with rain and snow and rarely freezes in the winter. Zhamantuz is an intermittent lake that dries in the summer.

Flora and fauna
Zhamantuz is known as a "dead lake" (тұйық көл) in Kazakh owing to the lack of fish living in its bitter waters. Typha and Phragmites reeds grow in stretches of the lakeshore and wormwood tufts close around the basin.