Want to get inside Historic Yates Mill? Join us for a half-hour tour (starting at 1 p.m., 1:30 p.m., 2 p.m., 2:30 p.m. or 3 p.m.) to view the main power drive and milling machinery while exploring the mill's history and aspects of its preservation. Preregistration is not required. Limit: 15 people per half-hour tour. Tickets are available inside the park's visitor center. For all ages.