# Ontario Highway 581

> secondary provincial highway in Ontario, Canada

**Wikidata**: [Q56515112](https://www.wikidata.org/wiki/Q56515112)  
**Source**: https://4ort.xyz/entity/ontario-highway-581


## References

1. [Source](http://www.mto.gov.on.ca/english/publications/official-road-map/pdfs/map-14.pdf)
2. [Ontario Geographic Names Map Viewer](http://www.gisapplication.lrc.gov.on.ca/Geonames/Index.html?site=Geographic_Names&viewer=Geonames&locale=en-US)