Devil's Hollow

Another hell mouth is supposed to exist in Blue Ash, part of greater Cincinnati in the northeastern part of Hamilton County. It's a drainage system similar to Columbus's Gates of Hell. Apparently the mazelike tunnel gets smaller and smaller, is decorated with very creative and eerie graffiti, and leads to a spot where--legend has it--satanists performed a dark rite and opened a portal to hell. Spooky goings-on in and around the Devil's Hollow drainage system are often attributed to this demonic fact.