# Empire Mine State Historic Park

> state historic park in Grass Valley, California, USA

**Wikidata**: [Q5374101](https://www.wikidata.org/wiki/Q5374101)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Empire_Mine_State_Historic_Park)  
**Source**: https://4ort.xyz/entity/empire-mine-state-historic-park


## References

1. National Register of Historic Places
2. National Archives Catalog
3. BabelNet