Coal workings including open cast mining and spoil heaps are visible on air photos taken in the 1950s. These workings were located in fields to the south-west of Arcot Hall. It is not clear which areas were actually excavated and which were simply receivers for spoil so the impact on the possible Iron Age or Roman periods enclosure at NY24003 57360 is not clear. These workings have been levelled and relandscaped on the latest air photos.