# Q44514972

> lighthouse in Trosa Municipality, Baltic coast, Sweden

**Wikidata**: [Q44514972](https://www.wikidata.org/wiki/Q44514972)  
**Source**: https://4ort.xyz/entity/q44514972


## References

1. [Fyrwiki](https://fyr.org/wiki/index.php/M%C3%A4rholmen)
2. [NGA List of Lights, Radio Aids and Fog Signals. 2017](http://msi.nga.mil/MSISiteContent/StaticFiles/NAV_PUBS/NIMA_LOL/Pub116/Pub116bk.pdf)
3. [notice to mariners. 2018](https://www-o.sjofartsverket.se/UfsPdf/720SV.pdf)
4. Swedish list of lights. 1978