Desná (Morava)

Desná
Tess
River
The Dlouhé stráně Hydro Power Plant
Country	Czech Republic
Regions	Moravia, Olomoucký kraj
District	Šumperk District
Tributaries
- left	Merta (stream)
Cities	Loučná nad Desnou, Velké Losiny, Rapotín, Vikýřovice, Šumperk, Sudkov, Postřelmov
Source	Divoká Desná, Divoká Desná
- location	Kouty nad Desnou, Hrubý Jeseník
- elevation	1,310 m (4,298 ft)
- coordinates	50°3′13″N 17°12′50″E / 50.05361°N 17.21389°E / 50.05361; 17.21389
Mouth	Morava
- location	Postřelmov
- elevation	155 m (509 ft)
- coordinates	49°54′33″N 16°55′48″E / 49.90917°N 16.93000°E / 49.90917; 16.93000Coordinates: 49°54′33″N 16°55′48″E / 49.90917°N 16.93000°E / 49.90917; 16.93000
Length	43 km (27 mi)
Basin	326 km2 (126 sq mi)
Discharge	mouth
- average	4.48 m3/s (158 cu ft/s)
Progression	Morava→ Danube→ Black Sea
The Desna valley

Desná (German: Die Tess) is a river situated in Olomouc region of Czech republic, left tributary of the Morava

The Desná river originates at the confluence of Hučivá Desná and Divoká Desná in Kouty nad Desnou, the village situated in deep valley of High Ash Mountains. The Desná then goes southwest through a valley toward the town of Šumperk. After approximately 43,6 km, the Desná flows into the Morava river near Postřelmov village.The mean annual discharge at its mouth is 4.48 m³/s About 50% of the river is situated in urban area of Kouty nad Desnou, Loučná nad Desnou, Velké Losiny, Petrov nad Desnou, Rapotín, Vikýřovice, Šumperk and Sudkov, this parts of the river are strongly regulated. Riverbanks are often strengthened by walls; river stream is free of obstacles. Natural character has been preserved in a part between Bludov and Sudkov, where the river has meander character. Meanders are inhabited by brown trouts, graylings, european bullheads and eurasian beavers. Vegetation consists of stinging nettle, black alder, common hop, himalayan balsam, common knotweed, common knotgrass and giant hogweed.