Hell's Hollow Trail at McConnell's Mill State Park in Ellwood City, Pennsylvania is an easy 1.2 mile out-and-back hike down to Hell's Hollow Falls and back. Hell's Hollow Falls is about 15 feet tall and about 20 feet wide, but cascades down the hill for a further distance before reaching the true falls. The hike to Hell's Hollow Falls is short and flat, making this a quick day hike; however, getting down to the falls is not wheelchair accessible. Just before you reach the bottom of the falls, the trail starts heading downhill to a staircase and the trail can be slippery, because the trail is mostly rocky.
Follow the staircase down to the creek and use the large rocks in the creek to cross it. On the other side of the creek you can get an excellent view of Hell's Hollow Falls and the creek that cascades down the large rock formation just before the falls.
This is one of the best trails in McConnell's Mill State Park and is a moderately-trafficked trail. This trail is much more popular on weekends and there's often at least one group of people at the falls at all times on the weekends; however, you can certainly plan a secluded visit to Hell's Hollow Falls during the middle of the week.