Large rock slope failures are a threat to human life and infrastructure. Two such failures occurred in 2016 and 2022 on Forkastningsfjellet, Svalbard, and changes in the geomorphology hint towards future failures. Despite these incidents, the role of permafrost on the instabilities remains unknown. This project aims to characterize the thermal regime of Forkastningsfjellet, with a specific focus on potential future sliding planes. To do so, geomorphological mapping, runoff and active layer measurements, ground surface temperature surveys and soil profiles will be conducted during fieldwork in 2025. The collected data will be used to analyze and understand how permafrost influences rock slope failures on Forkastningsfjellet.