Barnaulka

The Barnaulka (Барнаулка) is a river in Altai Krai, Russia. The river is 207 km long and has a catchment area of 5720 km2.

The basin of the river is located in the Rebrikhinsky, Shipunovsky and Pavlovsky districts. The city of Barnaul is named after the river. The Barnaulka suffers from the impact of pollutants released by industrial activity along its course.

Course
The Barnaulka is a left tributary of the Ob river. It has its sources in Zerkalnoye, a lake with a surface of 18 km2 lying 60 km to the west of Aleysk. The river flows in a roughly northeastern direction. The upper course of the river is within a trench of glacial origin of the Ob Plateau, the same trench as lake Gorkoye (Chernokurynskoye). The river basin includes a chain of lakes connected by marshy canals, as well as numerous swamps and smaller lakes. Finally the Barnaulka meets the left bank of the Ob at Barnaul, 3409 km from the Ob's mouth.

Tributaries
The longest tributary of the Barnaulka is the 18 km long Vlasikha (Власиха) on the left. The river is largely fed by groundwater. It is frozen between November and April.