# Halverson Marsh

> swamp in Pierce County, Washington state, United States of America

**Wikidata**: [Q49192294](https://www.wikidata.org/wiki/Q49192294)  
**Source**: https://4ort.xyz/entity/halverson-marsh


## References

1. Geographic Names Information System
2. National Hydrography Dataset
3. OpenStreetMap
4. GeoNames
5. National Elevation Dataset