The reservation contains the remains of historic sandstone quarries that supplied stone for major local buildings in the 19th century.
Wallace Lake is a man-made body of water created by the natural flooding of an abandoned sandstone quarry.
The park features an outdoor toboggan chute that operates on both ice and refrigerated tracks, allowing for use in varying winter temperatures.
The reservation protects sensitive shale creek bed ecosystems which are characteristic of the Rocky River watershed.
Part of the park's trail network follows the route of a former rail line, providing relatively flat transit through the hilly terrain.
Mill Stream Run Reservation is a sprawling Cleveland Metroparks site defined by its unique shale-bottomed streams and diverse glacial landscape. The park features the Wallace Lake swimming area, which occupies a former sandstone quarry. Visitors can traverse the All-Purpose Trail that connects the park to the larger Cleveland Metroparks trail system. The reservation is home to the Chalet at Mill Stream Run, which facilitates year-round recreational activities. The site highlights the Rocky River valley's geological history through exposed bedrock and forested ravines. It maintains dedicated areas for fishing, picnicking, and wildlife observation. The reservation serves as a regional hub for both warm-weather water sports and cold-weather sliding activities.
The wooden overlook bridge crossing the stream near the Rocky River confluence.
Bring water shoes if planning to explore the creek beds, as the shale can be slippery and sharp.
Check the park's official conditions page before winter visits to ensure the toboggan chutes are operational.
Visit the less-trafficked forest trails during peak autumn weekends to avoid crowding at the main lake entrance.
Attempting to swim in the creek outside of the designated, lifeguard-monitored swimming beach at Wallace Lake.
The toboggan chute is seasonal, operating exclusively during winter months; swimming beach is seasonal, opening late spring through early autumn.
Leash your pets, stay on marked trails to protect native vegetation, and pack out all trash.
