In September of 2014 Archaeological Research Services Ltd carried out a programme of archaeological work, including excavation, at coastal alum working sites at Boulby, Kettleness, Saltwick and Sandsend. This work was funded by Historic England and administered by the North York Moors National Park Authority.
An assessment in 2014 investigated six scheduled alum working sites that were at risk of coastal erosion within the North York Moors National Park. This assessment identified that the alum working sites at Boulby, Saltwick Nab, Sandsend, Stoupe Brow and Kettleness required further work in order to excavate and record them before they suffered damage due to increasing levels of erosion. The archaeological work was intended to enable the Scheduled Monuments at Saltwick Nab, Kettleness and Boulby to be removed from the Heritage at Risk register and a better assessment to be made at Sandsend, which is currently assessed as ‘Vulnerable’.