# Pompeys Pillar National Monument

> rock formation in Montana, USA

**Wikidata**: [Q1483462](https://www.wikidata.org/wiki/Q1483462)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pompeys_Pillar_National_Monument)  
**Source**: https://4ort.xyz/entity/pompeys-pillar-national-monument


## References

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