A contra dance will be held at the Trenton Grange Hall from 7:30-11 pm on Saturday, July 15. The dance will feature live music and a caller to call the dances. No experience or partner is required. Beginners and all ages are welcome. Admission is $8 and snacks are provided. The Grange Hall is located at the intersection of routes 3 and 230, next to the Bar Harbor Airport. For more information, call 244-4193.