Assessing the physical integrity of archaeological sites is vital for heritage conservation management. Using the example of Arslantepe, a prehistoric tell site in south-eastern Türkiye, this article demonstrates the application of RUSLE modelling to estimate surface erosion vulnerability, employing ultra-high-resolution photogrammetry and a field-based geoarchaeological framework. The results reveal contained erosion across the site with localised degradation limited to steep trench walls and spoil heaps, indicating remarkably good site conservation and consolidating the effectiveness of RUSLE modelling as a scalable method for evaluating surface processes and informing conservation strategies on individual archaeological sites.