Buy Hinterland Music Festival: Mt. Joy, Ethel Cain, Chappell Roan & The Japanese House - Sunday tickets for Avenue of the Saints Amphitheater and Event Center in Saint Charles, IA. The event is scheduled for Sun, Aug 4, 2024 11:00 am. We have 20 tickets in various price ranges from $790.00 to $1427.00 with an average price of $1068.00. Make sure to utilize our interactive seating chart to select the perfect seats for your experience.