Investigation of streamflows in high–altitude cryosphere due to the changing climate is an immense challenge under inadequate climate records. The current study compares the efficiency of rainfall–runoff model (HEC–HMS) and the snowmelt–runoff model (SRM) for current climate in Hunza River catchment. Landsat–5 & 8 imagery was selected for land cover classification and change detection using Earth Recourses Data Analysis System (ERDAS) Imagine tool.