Long-term continuous ambient seismic monitoring and electrical resistivity tomography (ERT) surveys can be valuable geophysical techniques for understanding the response of unstable rock volumes to external meteorological variations. Their increasing application in glacial and periglacial mountain areas is mainly aimed at monitoring of rock glaciers and permafrost, being among the most reliable indicators of climate change due to their sensitivity to temperature variations. Mountain regions such as the Alps are expected to be particularly affected by 21st-century global warming, and the related permafrost thawing has potential impacts on slope stability, potentially increasing the likelihood of related hazards. Therefore, the importance of monitoring the Sas da Lech rock columns, in the Dolomites (Italy, BZ).