# Oberfeld / Helfenberg, Medieval Castle Ruins

> castle ruins in the municipality of Gossau in the canton of St. Gallen, Switzerland

**Wikidata**: [Q1012276](https://www.wikidata.org/wiki/Q1012276)  
**Source**: https://4ort.xyz/entity/oberfeld-helfenberg-medieval-castle-ruins


## References

1. Swiss PCP Inventory 2021
2. Swiss PCP Inventory 2023
3. [Source](https://map.geo.admin.ch/#/map?lang=de&center=2734547.81,1251651.9&z=13&topic=ech&crosshair=marker,2734547.71,1251661.71&layers=ch.bfs.gebaeude_wohnungs_register,f&bgLayer=ch.swisstopo.swissimage)