The festival in St. Charles, Iowa, about 30 minutes south of Des Moines, takes over the Avenue of the Saints Amphitheater. This year, the music festival, the largest in Iowa, takes play Aug. 1-3.

The largest music festival in Iowa returns, as the Avenue of the Saints Amphitheater and Event Center hosts Hinterland. Hinterland started in 2015 and has gone from two to three days. The music ...