# Mad River

> tributary to the Entiat River in Chelan County, Washington, United States of America

**Wikidata**: [Q6726040](https://www.wikidata.org/wiki/Q6726040)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mad_River_(Washington))  
**Source**: https://4ort.xyz/entity/mad-river-q6726040


## References

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