Paranormal Investigation – April 25, 2026

Join Big River Paranormal as they use their unique equipment and knowledge to attempt to connect with residents and guards of the past. Event: Saturday, April 25, 2026. Arrive at 9:00 pm, Doors open at 9:15 pm. Admission is $45 per person and limited to only 50 participants. All guests must be at least 18 years old (Photo ID required at the door). This event is FREE to Idaho State Historical Society Members! Members are eligible for two free tickets per Membership to this event. Interested in becoming a Member? Visit history.idaho.gov/membership for more information. Note: Please print or save your receipt confirmation for use as your event admission ticket. Old Idaho Penitentiary event tickets are nonrefundable and non-transferable.