The Osered () is a river in

Voronezh Oblast Voronezh Oblast is a federal subjects of Russia, federal subject of Russia (an oblast). Its administrative center is the types of inhabited localities in Russia, city of Voronezh. Its population was 2,308,792 as of the Russian Census (2021), 20 ...

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 ...

. It is a tributary of the Don. It has a total length of and a

drainage Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess water. The internal drainage of most agricultural soils can prevent severe waterlogging (anaerobic conditions that harm root gro ...

area of .«Река Осередь (Осеред, балка Осеред)»
Russian State Water Registry

References

Rivers of Voronezh Oblast {{Russia-river-stub