Oleška (river)

River in Hradec Králové, Czech Republic

Oleška

The Oleška in Košťálov

Location
Country| Czech Republic
Regions|

* Liberec
* Hradec Králové

Physical characteristics
Source|
• location| Studenec, Giant Mountains Foothills
• elevation| 538 m (1,765 ft)
Mouth|

• location

| Jizera

• coordinates

| 50°36′4″N 15°19′54″E﻿ / ﻿50.60111°N 15.33167°E﻿ / 50.60111; 15.33167

• elevation

| 316 m (1,037 ft)
Length| 36.0 km (22.4 mi)
Basin size| 171.3 km2 (66.1 sq mi)
Discharge|
• average| 1.74 m3/s (61 cu ft/s) near estuary
Basin features
Progression| Jizera→ Elbe→ North Sea

The Oleška is a left tributary of the Jizera River in the Czech Republic. It flows through the Liberec and Hradec Králové regions. It is 36.0 km (22.4 mi) long.

## Characteristic

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Confluence of the Oleška and Jizera

The Oleška originates in the territory of Studenec in the Giant Mountains Foothills at an elevation of 538 m (1,765 ft) and flows to Semily, where it enters the Jizera River at an elevation of 316 m (1,037 ft). It is 36.0 km (22.4 mi) long.[1] Its drainage basin has an area of 171.3 km2 (66.1 sq mi).[2]

The longest tributaries of the Oleška are:[1]

Tributary | Length (km) | Side

|
|

Popelka | 13.1 | left
Tampelačka | 10.1 | right
Rokytka | 7.8 | left

## Course

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The river flows through the municipal territories of Studenec, Levínská Olešnice, Stará Paka, Bělá, Libštát, Košťálov, Slaná and Semily.

## Fauna

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Fish species that live in the river include brown trout, rainbow trout, brook trout and grayling.[3]

## See also

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* List of rivers of the Czech Republic

## References

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1. ^ a b "Vodní toky". Evidence hlásných profilů (in Czech). Czech Hydrometeorological Institute. Retrieved 2024-12-11.
2. ^ "Tabulka I.2.1a – Útvary povrchových vod kategorie "řeka"" (PDF) (in Czech). Povodí Labe, s.p. Retrieved 2024-12-11.
3. ^ "Pstruhové revíry: Oleška 1 P (453088)" (in Czech). Český rybářský svaz, z.s., místní organizace Košťálov. Retrieved 2024-12-11.

## External links

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Wikimedia Commons has media related to Oleška.

* River flow at Slaná station – Flood Warning and Forecasting Service of the Czech Hydrometeorological Institute