The Setun is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in the west of Moscow

Moscow

Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

 and the largest tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of the Moskva River

Moskva River

The Moskva River is a river that flows through the Moscow and Smolensk Oblasts in Russia, and is a tributary of the Oka River.-Etymology:...

 in Moscow. The length of the river is 38 kilometres (23.6 mi), 20 kilometres (12.4 mi) of which is in Moscow itself. Its basin

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 has an area of 190 square kilometres (73.4 sq mi). The Setun River originates in the village of Salariyevo in Moscow Oblast

Moscow Oblast

Moscow Oblast , or Podmoskovye , is a federal subject of Russia . Its area, at , is relatively small compared to other federal subjects, but it is one of the most densely populated regions in the country and, with the 2010 population of 7,092,941, is the second most populous federal subject...

 and flows into the Moskva River near Krasnoluzhsky Road Bridge

Krasnoluzhsky Bridge

The name Krasnoluzhsky Bridge refers to three existing bridges across Moskva River, located between Kievsky Rail Terminal and Luzhniki in Moscow.- Krasnoluzhsky Rail Bridge :...

, opposite of the village of Luzhniki. The river teems with roach

Rutilus

Rutilus is a genus of fishes in the family Cyprinidae, commonly called roaches. Locally, the name "roach" without any further qualifiers is also used for particular species, particularly the Common Roach Rutilus (Latin for "shining, red, golden, auburn") is a genus of fishes in the family...

, European perch

European perch

The European perch, Perca fluviatilis, is a predatory species of perch found in Europe and Asia. In some areas it is known as the redfin perch or English perch, and it is often known simply as perch. The species is a popular quarry for anglers and has been widely introduced beyond its native area,...

, crucian carp

Crucian carp

The crucian carp is a member of the family Cyprinidae, which includes many other fish, such as the common carp, or the smaller minnows. They inhabit lakes, ponds, and slow-moving rivers throughout Europe and Asia. The crucian is a medium-sized cyprinid, which rarely exceeds a weight of over 3.3...

, pike

Esox

Esox is a genus of freshwater fish, the only living genus in the family Esocidae — the esocids which were endemic to North America, Europe and Eurasia during the Paleogene through present.The type species is E. lucius, the northern pike...

, and other fish

Fish

Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...

, but is of no value to the fishing industry

Fishing industry

The fishing industry includes any industry or activity concerned with taking, culturing, processing, preserving, storing, transporting, marketing or selling fish or fish products....

 due to pollution with toxic waste

Toxic waste

Toxic waste is waste material that can cause death or injury to living creatures. It spreads quite easily and can contaminate lakes and rivers. The term is often used interchangeably with “hazardous waste”, or discarded material that can pose a long-term risk to health or environment.Toxic waste...

.

The border territory upon the both banks is included in Setun's river valley Wildlife Sanctuary

Setun's river valley Wildlife Sanctuary

Setun's river valley — the largest wildlife sanctuary placed in the Moscow bounds. The sanctuary territory is located along Setun' river mere.Throth the city the Setun river is leaking in the Western Administrative Okrug.Founded in 2003....

, placed in the Moscow city bounds.