Sonoma-Marin Fairgrounds & Events Center Posted on September 16, 2020 Location 175 Fairgrounds DrivePetalumaCA94952 Next Event 18th Annual Chilly Billy Fun Run Hot Rod & Motorcycle Show - 10/07/2023 - 8:00 am - 3:30 pm Map Unavailable Upcoming Events 18th Annual Chilly Billy Fun Run Hot Rod & Motorcycle Show - 10/07/2023 - 8:00 am - 3:30 pm