Geophysical Survey at Mindale Farm, Meliden, Wales

This geophysical survey was completed using a Sensys FMG650/3 system. Readings were recorded at a resolution of 0.01 nT and data collected with a traverse interval of 1 m and a sample interval of between 0.16 - 0.25 m. The survey produced good results throughout, although no anomalies of an archaeological origin have been identified. Several anomalies have been interpreted as having possible associations with the former Talargoch Mine. A positive, amorphous anomaly noted within Field 2 broadly corresponds to the location of the Talargoch Mine Old Level Shaft IV. Furthermore, an amorphous area of dipolar anomalies located immediately to the northwest has been identified as the Talargoch Mine Walkers Shaft Magazine illustrated on available online maps (Foot Path Map, 2026) and noted as an unnamed building on historic OS maps (1888 -1915). The remaining anomalies within the dataset can be attributed to two probable underground services, ferrous disturbances which may be in part associated with historic mining, or contemporary activity along the survey periphery, as well as isolated areas of increased magnetic response likely caused by disturbed ground and or redeposited materials, which may again be associated with former mining activity.