The Green River Festival returns to Greenfield, Massachusetts from June 19-21, 2026, featuring headliners Charley Crockett, Geese, and Spoon across three days of music. This rock, folk, indie, pop, and alternative festival showcases 49 artists from the United States, New Zealand, Australia, Colombia, and Germany. The diverse lineup spans multiple genres, making it an ideal destination for fans of contemporary rock and indie music looking for an eclectic festival experience in western Massachusetts.