Site Report from a Geophysical Survey at Point Lane, Cosheston, Pembrokeshire 2022

This collection comprises a single report from a geophysical survey undertaken by Northern Archaeological Associates Ltd. at Point Lane, Cosheston, Pembrokeshire in February 2022.

The geophysical survey was undertaken as a gradiometer survey using the Bartington Grad601-2 dual magnetic gradiometer system with data logger. The readings were recorded at a resolution of 0.01nT and data were collected with a traverse interval of 1m and a sample interval of 0.25m. All recorded survey data was collected with reference to a site survey grid comprised of individual 30m x 30m squares. The grid was established using Real Time Kinematic (RTK) differential GPS equipment and marked out using non-metallic survey markers. All grid nodes were set out with a positional accuracy of at least 0.1m as per existing guidelines and could be re-located on the ground by a third party.