McConnell's Mill State Park
225 Pleasant Valley Road
Portersville, PA 16051-9650
Region: Pittsburgh & Its Countryside
The Slippery Rock Creek Gorge, created when glacial lakes drained thousands of years ago, is at the center of this park. There are many other historical sites at the park: an old gristmill and a covered bridge, both built in the 1800s, to name two. The gorge attracts many visitors to sightsee the natural features of the park, which include several scenic overlooks and waterfalls.