Everyone is invited to the centennial celebration (bring the entire family) on Saturday, October 12, 2019, from 11:00 a.m. until 4:00 p.m. Opening ceremony at 11:30 a.m. with the posting of colors and singing of the national anthem. The event will be at Riverfront Park (551 W. Lambert Ln, Oro Valley 85737). Free admission! Live…