Castellar del Riu
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![](https://cdn.statically.io/img/upload.wikimedia.org/wikipedia/commons/thumb/3/36/Escudo_de_Castellar_del_Riu_%28Barcelona%29.svg/90px-Escudo_de_Castellar_del_Riu_%28Barcelona%29.svg.png)
Castellar del Riu is a municipality of 176 people (2020). It is in the province of Barcelona in the autonomous community of Catalonia in Spain.
Castellar del Riu is a municipality of 176 people (2020). It is in the province of Barcelona in the autonomous community of Catalonia in Spain.