# Isojärvi

> lake in Mäntsälä, Uusimaa, Finland

**Wikidata**: [Q24321041](https://www.wikidata.org/wiki/Q24321041)  
**Source**: https://4ort.xyz/entity/isoj-rvi-q24321041


## References

1. GEOnet Names Server. 2018
2. NLS Geographic Names Register
3. MapSite