Shalkar
Шалқар
Sentinel-2 image of the lake in 2021
Shalkar
Location	Kokshetau Hills, Kazakh Uplands
Coordinates	53°12′N 68°24′E / 53.200°N 68.400°E / 53.200; 68.400
Part of	Kokshetau Lakes
Primary inflows	Koi-Bagir
Primary outflows	Tyun-Tyugur
Basin countries	Kazakhstan
Max. length	9.49 kilometers (5.90 mi)
Max. width	2.95 kilometers (1.83 mi)
Surface area	29.6 square kilometers (11.4 sq mi)
Average depth	5.34 meters (17.5 ft)
Max. depth	11 meters (36 ft)
Residence time	UTC+6
Shore length1	38.4 kilometers (23.9 mi)
Surface elevation	309.7 meters (1,016 ft)
Islands	3
1 Shore length is not a well-defined measure.

Shalkar (Kazakh: Шалқар; Russian: Шалкар) is a lake in Aiyrtau District, North Kazakhstan Region, Kazakhstan.^[1]

Aiyrtau village lies a little to the south of the southwestern tip of the lake and Shalkar village to the southeast of the eastern tip. There are resorts by the lakeshore.^[2][3] Lake Shalkar is part of the Kokshetau National Park, a protected area.^[4]

Geography

Shalkar lies in the western sector of the Kokshetau Lakes. It is an elongated lake stretching in an ENE-WSW direction with a cove at the eastern end. The entrance of the cove is 164 meters (538 ft) wide. The southern shore is steep, with up to 8 meters (26 ft) high cliffs, while the remaining lakeshore is gently sloping. The bottom of lake Shalkar is flat, with sandy and rocky areas. There are three islets near the eastern shore of the lake. The water is slightly brackish. Lake Saumalkol lies 10 kilometers (6.2 mi) to the northwest and Ulken Koskol 15 kilometers (9.3 mi) to the north.^[1]

The Koi-Bagir river flows into the lake during the spring floods from the northwestern side. The outflow of lake Shalkar is river Tyun-Tyugur, flowing southwards from the southwestern end.^[1][2][5]

Flora and fauna

There are forests close to the southern shore of the lake, with birch, aspen and sea buckthorn, among other trees and shrubs.^[5] From the fish species living in the lake, the perch is autochthonous. The least cisco, peled, carp, Prussian carp and crucian carp found in lake Shalkar have been introduced.^[6]