Siletiteniz
Siletiteniz, also Seletyteniz, Seletytengiz is an endorheic salt lake located in the Ishim Plain, part of the West Siberian Plain.
The lake lies in North Kazakhstan, with the Pavlodar Region border running along the eastern lakeshore and the Kazakhstan-Russia border to the north of the northeastern end.
Teniz is Kazakh for 'sea', but the etymology of Selety unclear. One hypothesis is that it derives from Yeniseian *sēre 'stag'.
Geography
The lake basin covers but the actual area covered by water varies according to the seasons. The lake reaches a maximum depth of and has a volume of about. The northern and eastern shores are high and straight while the western shore is low-lying and indented, gradually giving way to salt marshes. Hydrogen sulfide is emitted from deposits at the bottom of the lake. Smaller lake Zhamantuz lies close to the southwestern tip, and lake Zhaksytuz to the south. Other lakes in the vicinity are Kyzylkak to the east of its northern end, Teke to the north, and Ulken-Karoy to the northwest.The lake is mainly fed by snow. The Sileti River, which is long and drains an area of, sometimes reaches the lake during high water but usually dissipates into the marshes south of the lake.