The study used a model to simulate how water flows in mountainous areas of a river basin. The results showed that the simulation accurately predicted the runoff patterns, with high efficiency values. The mountainous runoff mainly comes from lateral flow, followed by shallow groundwater and surface runoff. The amount of runoff varies throughout the year, with a slight decrease in summer months. Overall, the study helps us understand how water moves in mountainous regions, which is important for various purposes like agriculture and the environment.