# Medgrundet upper light

> lighthouse in Piteå Municipality, north Bothnian coast, Sweden

**Wikidata**: [Q41737253](https://www.wikidata.org/wiki/Q41737253)  
**Source**: https://4ort.xyz/entity/medgrundet-upper-light


## References

1. Swedish list of lights. 1978
2. [Fyrwiki](https://fyr.org/wiki/index.php/Medgrundet)
3. [notice to mariners. 2022](https://ufs.sjofartsverket.se/pdf/2022/907SV.pdf)
4. [NGA List of Lights, Radio Aids and Fog Signals. 2017](http://msi.nga.mil/MSISiteContent/StaticFiles/NAV_PUBS/NIMA_LOL/Pub116/Pub116bk.pdf)