Addison County Field Days Addison County Field Days return to Vergennes with a full schedule of entertainment and agriculture events Aug. 8-12. Creating family fun since 1948, Vermont's largest agricultural fair features midway rides for all ages, racing pigs, Wildlife Encounters live animal shows, demolition derbies, livestock shows and demonstrations, live music, magic and hypnotism shows, tractor pulls, horse shows, exhibits, 4-H workshops, children's activities, tethered hot air balloon rides, Milking\ Parlor & Dairy Bar, Maple Sugar House, contests and favorite…