The lower portions of both branches and the mainstem Rocky River flow through a V-shaped valley; the valley and the river are part of the Cleveland Metroparks system. The Rocky River valley is heavily forested, and a parkway along the river provides access to many different activities available in the park. Given the heavy population density of Cleveland and its older suburbs, many of which border on the valley, the valley provides a popular location for recreational activities that would be difficult in other parts of the city.