# Mount Sylvania

> extinct volcano in Portland, OR

**Wikidata**: [Q8522006](https://www.wikidata.org/wiki/Q8522006)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mount_Sylvania)  
**Source**: https://4ort.xyz/entity/mount-sylvania


## References

1. Geographic Names Information System
2. GeoNames