The Cedar River Reservoir is a large water body located in the state of Washington. It serves as a crucial source of drinking water for the city of Seattle and surrounding areas. The reservoir is fed by the Cedar River, which flows from the nearby Cascade Mountains. Surrounded by lush forests and natural landscapes, the Cedar River Reservoir is also a popular spot for outdoor activities. Visitors can enjoy hiking, birdwatching, and picnicking in the scenic environment. The area is managed by the Seattle Public Utilities to ensure water quality and conservation.