 The Big Z Community Calendar is a service of AdvantageNews.com, where you can find local news, sports, weather, and podcasts anytime at AdvantageNews.com. Fireworks in the Mississippi will be held July 3rd at Riverfront Park in Alton from 5 to 10 p.m. Music by the Army 399th Rock Band, food and drink for purchase, and fireworks at 930. Summer youth sports camps continue at Marquette Catholic High School in Alton with sessions for Boys and Girls Running and Boys and Girls.