An archaeological evaluation was carried out by NAA during April 2021, on land to the southeast of Windy Hill Quarry, County Durham. The evaluation comprised 12 strip trenches and was undertaken in response to a proposed extension of the existing quarry. Although more extensive archaeological remains were encountered during the current evaluation than the previous phase (NAA 2017), it possibly all relates to the same scheme of post-medieval field systems, which can still be seen on the ground in the adjacent field to the east, where the furrows from regimen 24 continue as earthworks.The evaluation has served to inform the means by which that field system was delineated, by a series of intercutting ditches and potential trackways, and has provided evidence for the continuation of the boundary, seen on the 1859 OS mapping, to the west, across the area of the PDA.