# Duncan Slough

> tributary to Brown Slough in Wahkiakum County, Washington, United States

**Wikidata**: [Q49898469](https://www.wikidata.org/wiki/Q49898469)  
**Source**: https://4ort.xyz/entity/duncan-slough


## References

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