The earthworks and cairn that are found on the summit of Black Hill, near Lesmahagow, in South Lanarkshire have long been known. The site was first surveyed in detail as part of the RCAHMS survey of the county (RCAHMS 1978) and was followed up by a survey undertaken by members of ACFA (Wood 2001). The site was included in the Iron Age chapter of the previous Research Framework publication for West Central Scotland (Alexander 2015). More recently as part of the HLF funded Clyde and Avon Valley Landscape Partnership (CAVLP,) Northlight Archaeology and Glasgow University Archaeology Department undertook a season of excavation work on the hill (Murtagh 2017). The Scottish Government Lidar data now also covers this part of South Lanarkshire.