It lies at the northern end of the Kazakh Uplands in a tectonic basin at an elevation of 294 meters (965 ft).

25 kilometers (16 mi) long river Aksuat flows into the lake from the south.

[2][1][3] Itemgen has an elongated shape oriented in a roughly south–north direction, with the wide southern part tapering towards the north.

On average years the highest level is in April and the lowest in September.

[3] Lake Itemgen is surrounded by agricultural fields and steppe vegetation.