thumb|Map of the neighbourhoods of Mataró. Rocafonda is the darker green area, near the centre of the map. Rocafonda is a neighbourhood of the city of Mataró in Catalonia, Spain.
thumb|Map of the neighbourhoods of Mataró. Rocafonda is the darker green area, near the centre of the map. Rocafonda is a neighbourhood of the city of Mataró in Catalonia, Spain.
Rocafonda was built in the 1960s to accommodate immigration from southern Spanish regions such as Andalusia and Extremadura. While the rest of Mataró had low houses, high tower blocks were built in Rocafonda, producing a high population density. Rapid immigration led to shortages of school places and poor roads and water supply, leading to the formation of an organised neighbourhood group in the 1970s. In the 1990s, Rocafonda's original southern Spanish inhabitants moved to richer neighbourhoods, and foreign migrants moved in due to the low cost of living.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).