Uyaly

Uyaly (Уялы) is an alkaline lake in Akkuly District, Pavlodar Region, Kazakhstan.

The lake is located about 85 km west of the Russia-Kazakhstan border. The nearest village is Sharbakty 6 km to the north. Akkuly, the district capital, lies 36 km to the northwest.

Geography
Uyaly is an endorheic lake part of the Irtysh basin. It lies in a tectonic depression of the Kulunda Plain. Lake Sharbakty lies 5 km to the north, Tuz 22 km to the east and Tengizsor 23 km to the southeast. River Irtysh flows 16 km to the southwest. The M38 Highway from the Border of Russia to Pavlodar and Semey (Semipalatinsk), passes 6.5 km to the northeast of the eastern end of the lake.

The lake has an oval shape roughly oriented in an east–west direction. It doesn't dry out in the summer and always freezes in the winter. Unlike the other lakes in the area, Uyaly's waters are only slightly saline, with a low mineralization of 27 g/l, carbonate and bicarbonate being the predominant ions. The pH of the waters is 9.5 and among the lakes of the region only lake Borli further north has an almost as high alkalinity.

Flora and fauna
Lake Uyaly is surrounded by steppe vegetation.