Shihmen Reservoir is a large artificial lake located in Taoyuan City, Taiwan. Completed in 1964, it serves as a crucial water supply source for the surrounding areas and plays a significant role in flood control. The reservoir is surrounded by scenic mountains and lush greenery, making it a popular spot for outdoor activities. The reservoir has a capacity of approximately 200 million cubic meters and is fed by the Dahan River. It also supports local agriculture by providing irrigation water. Visitors can enjoy various recreational activities, including hiking, fishing, and boating, while taking in the beautiful natural landscape.