BLUE ASH, Ohio - You won’t find it on a map and can’t see it from the road, but beyond the woods and overgrowth in a quiet Blue Ash community some say, exists a portal to hell,nicknamed Satan’s Hollow.
According to Urban Legend the old storm sewer was once used by Satanists as a location for rituals, including sacrificing animals and some claim humans.
Although police have repeatedly and emphatically denied any known murders or sacrificial activities at the location.
http://fox8.com/2016/02/08/urban-legend-or-satanic-site-a-look-at-satans-hollow/