The Orekhovka (, formerly Сандо-Вака ''Sando-Vaka'') 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 ...

Dalnerechensky District Dalnerechensky District () is an administrativeLaw #161-KZ and municipalLaw #190-KZ district (raion), one of the twenty-two in Primorsky Krai, Russia. It is located in the central and western parts of the krai. The area of the district is .

Primorsky Krai Primorsky Krai, informally known as Primorye, is a federal subjects of Russia, federal subject (a krais of Russia, krai) of Russia, part of the Far Eastern Federal District in the Russian Far East. The types of inhabited localities in Russia, ...

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 the longest

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of Malinovka, which it enters about 111 km from the Malnikova's confluence with the

Bolshaya Ussurka The Bolshaya Ussurka (, literally: "Great Ussuri") is a river in the Russian Far East in Primorsky Krai. It is a right tributary of the Ussuri, which it meets near Dalnerechensk. The area of the Bolshaya Ussurka drainage basin A drainage bas ...

. The Orekhovka

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, ...

covers about . The river is long. The usual depth of the river is .Primpogoda.ru: Orekhovka River
/ref> There are two

hydrologic Hydrology () is the scientific study of the movement, distribution, and management of water on Earth and other planets, including the water cycle, water resources, and drainage basin sustainability. A practitioner of hydrology is called a hydro ...

posts on the river near the villages of Polyany and

Yasnaya Polyana Yasnaya Polyana ( rus, Я́сная Поля́на, p=ˈjasnəjə pɐˈlʲanə, ) is a writer's house museum, the former home of the writer Leo Tolstoy.#Bartlett, Bartlett, p. 25 It is southwest of Tula, Russia, Tula, Russia, and from Moscow. ...

References

Rivers of Primorsky Krai {{FarEast-Russia-river-stub