Ulken Azhbolat
Ulken Azhbolat is a bittern salt lake in Uspen District, Pavlodar Region, Kazakhstan.
The lake lies to the NNE of Pavlodar town, north of Uspenka, the district capital, and west of Lozovoye.
There are mirabilite deposits in the lake area.
Geography
Lake Ulken Azhbolat is an endorheic lake located in the Kulunda Steppe, southern part of the West Siberian Plain, west of the Russian border. There is an elongated island in the middle of the lake. The Burla river flows into the eastern lakeshore. In years of adequate rainfall the river reaches the lake, but in dry years it ends in Lake Bolshoye Topolnoye, located to the east, on the other side of the Kazakhstan–Russia border.There are smaller lakes in the immediate vicinity of Ulken Azhbolat, including Kishi Azhbolat, an intermittent lake on the eastern side, as well as Lake Klevkino on the southern. Lake Shagan straddles the international border to the northeast, Ulken Tobylzhan lies to the south, lake Burlinskoye to the ESE, lake Bolshoye Yarovoye to the southeast and lake Kyzyltuz to the northwest.