Lomná River

Lomná Łomna
Lomná in Dolní Lomná
Country	Czech Republic
Basin features
Main source	Moravian-Silesian Beskids 870 m (2,850 ft)
River mouth	Olza River
Basin size	70.6 km2 (27.3 sq mi)
Physical characteristics
Length	17.5 km (10.9 mi)
Discharge	Average rate: 1.49 m3/s (53 cu ft/s) near estuary

 Lomná  (Polish: Łomna , Cieszyn Silesian: Łómno ) also known as Lomňanka (Polish: Łomnianka , Cieszyn Silesian: Łómnianka ) is a 17 kilometres (11 mi)-long river in Frýdek-Místek District, Moravian-Silesian Region, Czech Republic, in the historical region of Cieszyn Silesia.

It is the left tributary of the Olza River, to which it enters in Jablunkov (Jabłonków). It originates near the border with Slovakia and flows through the villages of Horní Lomná (Łomna Górna), Dolní Lomná (Łomna Dolna) and Bocanovice (Boconowice).

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