Geomorphological processes and rock slope instabilities affecting the AlUla archaeological region

Rock slope instabilities and geomorphological processes pose significant threats to the UNESCO World Heritage Site of Hegra, particularly its 110+ monumental sandstone tombs. The study identifies critical degradation patterns and slope instabilities that endanger these ancient rock-cut structures, as well as other archaeological sites in AlUla, such as Dadan and the Old Town oasis. Using an interdisciplinary approach, researchers analyzed rock mass characteristics, degradation processes, and potential mitigation strategies to preserve cultural heritage sustainably. The findings emphasize the need for low-impact monitoring technologies and the rediscovery of traditional local conservation techniques to address ongoing threats effectively.

Gallego, J. I., Margottini, C., Spizzichino, D., Boldini, D., & Abul, J. K. (2022). Geomorphological processes and rock slope instabilities affecting the AlUla archaeological region. Geotechnical Engineering for the Preservation of Monuments and Historic Sites III, 456–466. https://doi.org/10.1201/9781003308867-31