Northern Frights Haunted House is a Minnesota themed haunted attraction located in Southern Minnesota. Northern Frights Haunted House Located just South of Mankato at the Blue Earth County Fairgrounds. It features a 2 building main haunt with over 20 rooms including the normal Halloween scares and some special rooms based of Minnesota Stories. You can visit the wreck of the Edmund Fitzgerald, Paul Bunyan's cabin or Devil's Kettle. If you're brave enough you can also explore the Zombie Walk along the river and a Dark Maze. Haunting every Friday & Saturday in October. Come visit the “Land of 10,000 Screams”