 This study examined the hydrology of a high elevation catchment in the Swiss Alps. It found that snowmelt was the primary source of streamflow throughout the year, even during winter when there was no snow cover. This snowmelt was followed by a fresh event that reset the isotopic values of the water back to their original state. Additionally, soil temperature measurements indicated subsurface flow paths, while electrical conductivity measurements showed the magnitude of subsurface exchange between surface and subsurface waters. Finally, water temperature measurements in springs allowed researchers to distinguish between subsurface snowmelt contributions to streamflow and stored groundwater. By combining these different measurements, researchers were able to gain a more comprehensive understanding of the hydrologic processes occurring in the catchment. This article was authored by Amichelon, Nseperli, Hveria, and others.