The Biya (russian: Би́я; alt, Бий, ''Biy'') is a

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

in the

Altai Republic The Altai Republic (; russian: Респу́блика Алта́й, Respublika Altay, ; Altai: , ''Altay Respublika''), also known as Gorno-Altai Republic, and colloquially, and primarily referred to in Russian to distinguish from the neighbour ...

and

Altai Krai Altai Krai (russian: Алта́йский край, r=Altaysky kray, p=ɐlˈtajskʲɪj kraj) is a federal subjects of Russia, federal subject of Russia (a krai). It borders clockwise from the west, Kazakhstan (East Kazakhstan Region and Pavlodar ...

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

. At its confluence with the

Katun Katun may refer to: Places * Katun (river), a tributary of the Ob in Siberia, Russia * Katun Mountains or Katun Alps, a mountain range in Russia, part of the Altai Mountains * Katun (Vranje), a village in Vranje Municipality, Serbia * Katun (A ...

, downstream of the city

Biysk Biysk ( rus, Бийск, p=bʲijsk) is a city in Altai Krai, Russia, located on the Biya River not far from its confluence with the Katun River. It is the second largest city of the krai (after Barnaul, the administrative center of the krai). Pop ...

, the Ob is formed. The Biya is 301 km long; the

area Area is the quantity that expresses the extent of a region on the plane or on a curved surface. The area of a plane region or ''plane area'' refers to the area of a shape A shape or figure is a graphics, graphical representation of an obje ...

of its

drainage basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, t ...

is 37,000 km². It flows out of the

Lake Teletskoye Lake Teletskoye (russian: Телецкое озеро, lit=the lake of the ; ) is the largest lake in the Altai Mountains and the Altai Republic, Russia, and has depth up to 325 meters. Situated at a height of above the sea level, the lake is ...

. The river freezes up in mid-November to early December (some parts of the river freeze over on a year-to-year basis). It breaks up in early or mid-April. The Biya is navigable on its entire length. The maximum depth of river is .

References

Rivers of Altai Krai Rivers of the Altai Republic {{Russia-river-stub