# Ruotsinsalmi sea Fortress

> fortress in Kotka, Finland

**Wikidata**: [Q3387461](https://www.wikidata.org/wiki/Q3387461)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ruotsinsalmi_sea_fortress)  
**Source**: https://4ort.xyz/entity/ruotsinsalmi-sea-fortress


## References

1. cultural heritage sites of national significance in Finland
2. YSO-Wikidata mapping project