Hell Harvest Haunted House in Potosi, MO We are pleased to bring an intense fear experience to the Washington County area as the premier haunt attraction of the season. As experienced owners who have been involved with haunted attractions for the majority of our lives, we will provide an absolutely horrifying experience for anyone brave enough to enter Hell Harvest. Hell Harvest 2026 Calendar and Open Times   Fridays and Saturdays starting September 25 through October 31 $25 General Admission $35 Speed Pass $50 VIP Immediate Access Voted Best in St. Read more…