Mumlava
Source1 locationVítkovice, Giant Mountains
Source1 coordinates50°45′22″N 15°31′55″E
Mouth locationJizera
Mouth coordinates50°45′42″N 15°23′48″E
CountryCzech Republic
RegionLiberec
Length12.6 km
Source1 elevation1,364 m (4,475 ft)
Mouth elevation570 m (1,870 ft)
Discharge1 avg1.98 m3/s (70 cu ft/s) near estuary
Basin size51.6 km²

The Mumlava (German: Mummel) is a mountain river in the Czech Republic, a left tributary of the Jizera River. It flows through the Liberec Region. It is 12.6 km (7.8 mi) long. The river is known for the Mumlava Waterfall, which is the biggest waterfall in the Czech Republic.

Etymology

The German name of the river is Mummel. It was derived from the word mummeln, i.e. 'mumble', referring to the sounds the river makes. The Czech name was created from the German name.[1]

Characteristic

The Mumlava originates in the territory of Vítkovice in the Giant Mountains at an elevation of 1,364 m (4,475 ft) and flows to Harrachov, where it enters the Jizera River at an elevation of 570 m (1,870 ft). It is 12.6 km (7.8 mi) long.[2] Its drainage basin has an area of 51.6 km2 (19.9 sq mi).[3] The average discharge at its mouth is 1.98 m3/s (70 cu ft/s).[4]

The longest tributaries of the Mumlava are:[2]

TributaryLength (km)River kmSide
Milnice / Mielnica6.81.6right
Ryzí potok5.24.0left
Bílá voda4.72.8right

Course

The river flows through the municipal territories of Vítkovice, Rokytnice nad Jizerou and Harrachov. The upper course of the river (until its confluence with the Malá Mumlava Creek) is also called Velká Mumlava.

Mumlava Waterfall

The river is known for the Mumlava Waterfall, which is the biggest and one of the most famous waterfalls in the Czech Republic. It has a flow rate of 800 L/s and a height of 8.9 m (29 ft).[5] The Mumlava Waterfall is a popular tourist destination. It is located close to Harrachov and easy accessibility makes it the most visited waterfall in the country.[6]

The water flow has ground out the so-called giant's kettles in the granite riverbed at the waterfall site. They are up to 2.9 m (9.5 ft) deep. In winter, the water stream sometimes freezes and creates an icefall.[7][8]

Fauna

Only a minimum of animals live in the river. This is a natural condition, not caused by humans.[8]

Tourism

The Mumlava is suitable for river tourism. However, only the last four kilometres are accessible because of the river's location in the Krkonoše National Park, and the river is only suitable for experienced paddlers.[9]

See also

References

  1. ^ Pilous, Vlastimil (2011). "Vodopády: Mumlavský vodopád" (in Czech). Krkonoše – Jizerské hory. 7: 20–21. Krkonoše National Park. Retrieved 2024-12-10.
  2. ^ "Vodní toky" (in Czech). Evidence hlásných profilů. Czech Hydrometeorological Institute. Retrieved 2024-12-10.
  3. ^ "Povodňový plán města Harrachov: Hydrologické údaje" (in Czech). Elektronický digitální povodňový portál. Retrieved 2024-12-10.
  4. ^ "Evidenční list hlásného profilu č.63" (in Czech). Czech Hydrometeorological Institute. Retrieved 2024-12-10.
  5. ^ "Nejvyšší a největší vodopády ČR" (in Czech). Rekordy přírody. 2017-06-07. Retrieved 2024-12-10.
  6. ^ "Mumlavský vodopád v Harrachově je v tuzemsku nejnavštěvovanější" (in Czech). Novinky.cz. 2018-09-08. Retrieved 2024-12-10.
  7. ^ "Mumlavský vodopád v Krkonoších" (in Czech). CzechTourism. Retrieved 2024-12-10.
  8. ^ "Naučná stezka Živá mrtvá Mumlava" (in Czech). Krkonoše National Park. pp. 34–37. Retrieved 2024-12-10.
  9. ^ "Mumlava – čistokrevná creekovačka" (in Czech). Pádler. Retrieved 2024-12-11.