Wikipedia
Petrůvka (river)
( Polish: ) is a 31 km long river originating in Poland but flowing mostly through Karviná District, Moravian-Silesian Region, Czech Republic. It is the right tributary of the Olza River, to which it enters in Závada (part of Petrovice u Karviné).
It beginns in vicinity of Cieszyn ( Pastwiska) and then flows north through Hażlach, Kończyce Wielkie, Kończyce Małe, Zebrzydowice, where it veers west towards Marklowice Górne, Dolní Marklovice, Petrovice u Karviné and Závada.
Petrůvka
Petrůvka is a village and municipality ( obec) in Zlín District in the Zlín Region of the Czech Republic.
The municipality covers an area of , and has a population of 364.
Petrůvka lies approximately south-east of Zlín and south-east of Prague.