Berounka

The Berounka is a river in the Czech Republic, 138.2 km (85.9 mi) long,[1] the biggest left tributary of Vltava, draining an area of 8,708 km² (3,362 sq mi). It carries the name Mže (German: Mies) for 105.2 kilometres (65.4 mi)[1] from its source in Germany, next to the Czech border, until its confluence with the 109.7-kilometre (68.2 mi)[1] Radbuza in Pilsen. It then continues with the name of Berounka until it enters the Vltava on the edge of Prague. Originally, the entire stream was called Mže, but in the 17th century the lower course started to be named after the town Beroun, lying upon it.

Berounka Mže
The Berounka under Tetín
The Berounka with its two sources the Mže (northern) and the Radbuza (southern) until its confluence with the Vltava (magenta), also showing its watershed
Location
Country	Czech Republic
Cities	Tachov, Stříbro, Plzeň, Beroun, Prague
Physical characteristics
Source	Mže
⁃ location	Griesbacher Wald, Germany
⁃ coordinates	49°51′10″N 12°28′00″E
⁃ elevation	726 m (2,382 ft)
2nd source	Radbuza
⁃ location	Czech Republic
⁃ coordinates	49°29′13″N 12°39′58″E
⁃ elevation	869 m (2,851 ft)
Source confluence	Pilsen
Mouth	Vltava
⁃ location	Prague
⁃ coordinates	49°59′43″N 14°24′05″E
Length	138.2 km (85.9 mi)[1]
Basin size	8,708 km2 (3,362 sq mi)
Discharge
⁃ location	mouth
⁃ average	36 m3/s (1,300 cu ft/s)
Basin features
Progression	Vltava→ Elbe→ North Sea

The river is a favourite destination among canoeists, who enjoy the picturesque sceneries around, especially when it flows along the Křivoklátsko Landscape Protected Area where three castle ruins tower over the Berounka river valley.

The Berounka under Krašov Castle