# Methodology statement for a magnetometer, resistance and ground penetrating radar survey at Barnstaple Castle

> 2017 document

**Wikidata**: [Q106628793](https://www.wikidata.org/wiki/Q106628793)  
**Source**: https://4ort.xyz/entity/methodology-statement-for-a-magnetometer-resistance-and-ground-penetrating-radar-survey-at-barnstaple-castle