The Udy (also: ''Uda'', , ) is a

river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...

that rises in

Belgorod Oblast Belgorod Oblast () is a federal subjects of Russia, federal subject (an oblast) of Russia. Its administrative center is the types of inhabited localities in Russia, city of Belgorod. , the population is 1,540,486. History During the Princely ...

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

and runs through

Kharkiv Oblast Kharkiv Oblast (, ), also referred to as Kharkivshchyna (), is an oblast (province) in eastern Ukraine. Kharkiv borders Luhansk Oblast to the east, Donetsk Oblast to the southeast, Dnipropetrovsk Oblast to the southwest, Poltava Oblast to the w ...

Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...

. It is a right tributary of the Siversky Donets near

Chuhuiv Chuhuiv () or Chuguev () is a city in Kharkiv Oblast, Ukraine. The city is the Capital (political), administrative center of Chuhuiv Raion (district). It hosts the administration of Chuhuiv urban hromada, one of the hromadas of Ukraine. Population ...

.Уды

Great Soviet Encyclopedia The ''Great Soviet Encyclopedia'' (GSE; , ''BSE'') is one of the largest Russian-language encyclopedias, published in the Soviet Union from 1926 to 1990. After 2002, the encyclopedia's data was partially included into the later ''Great Russian Enc ...

Its length is . The

drainage basin A drainage basin is an area of land in which 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, ...

occupies . The second largest city of Ukraine,

Kharkiv Kharkiv, also known as Kharkov, is the second-largest List of cities in Ukraine, city in Ukraine.

, stands at the confluence of the Udy with the river Lopan.

Physical geography

The source of the river begins with springs in one of the beams Central Russian Upland near the village Bessonovka Belgorodsky District

(

) at an altitude of 190 m above sea level. The river crosses the border with Russia to the northeast of the village of Okip in

Bohodukhiv Raion Bohodukhiv Raion () is a raion (district) in Kharkiv Oblast of Ukraine. Its administrative center is the town of Bohodukhiv. Population: On 18 July 2020, as part of the administrative reform of Ukraine, the number of raions of Kharkiv Oblast was ...

. From the source to the confluence of the river Lopan flows from north to south, and below - in a south-easterly direction. The Udy flows into the river Siverskyi Donets 825 km from its mouth. Within the Kharkiv Oblast it flows along Bohodukhiv,

Kharkiv Kharkiv, also known as Kharkov, is the second-largest List of cities in Ukraine, city in Ukraine.

, Chuhuiv raions and through the city of Kharkiv. The total length of the Udy River is 164 km (127 km within the Kharkiv Oblast). The catchment area is 3894 km2 (in the Kharkiv Oblast 3460 km2). The total height difference (from the source to the mouth is 105 m, the average river slopeis 0.64 m/km. On the river there are cities Zolochiv and

Kharkiv Kharkiv, also known as Kharkov, is the second-largest List of cities in Ukraine, city in Ukraine.

Gallery

References

{{Rivers of Ukraine Rivers of Belgorod Oblast Rivers of Kharkiv Oblast