Presented by Franklin County Chamber of Commerce. Featuring great music. It’s fun for the entire family and is the premier event of the season, crafts, food and hot air balloon launches (weather permitting). Hot air balloon launch Saturday and Sunday at 6 pm. and Sunday at 6 am. Saturday - Full afternoon and evening of music. Sunday music ends at 8:00 pm. During the day crafts, food, and kids activities. Held at Greenfield Community College located at One College Drive in Greenfield. No alcohol or pets allowed. No tents. 413-773-5463. Admission: tickets available on line at www.greenriverfestival.com  Children 12 and under free. 413-773-5463 (Weekend of 413-773-9393).