Visit Mastodon State Historic Site for Story Time programs featuring stories and activities related to various park topics.
Mondays at Mastodon is a free summer program for elementary-age children to learn about nature, history, and have fun at Mastodon State Park. Themes include Ancient Art, Glorious Games, Finding Fossils, Writing in the Woods and more.
Visit Mastodon State Park with your Junior Explorer for outdoor learning and fun! A park representative will help you explore the outdoors through hands-on activities. Kids should dress for the weather in clothes that can get wet and messy.
The city of O’Fallon, Mo., throws a fantastic, family-friendly celebration at the Ozzie Smith Sports Complex over the 4th of July holiday weekend.
Join the celebration in Chesterfield on the 4th of July, with a petting zoo, pony rides, a Kids Zone with inflatables & slides, food trucks, live music, fireworks and lots more at the Chesterfield Valley Athletic Complex.
Year after year, Webster Groves Community Days continues to be one of the largest Independence Day community celebrations in the area, including one of the most popular 4th of July parades.
Take your family to watch birds of prey fly right over your head, meet the wonderful bird ambassadors of the World Bird Sanctuary up close and much more.
Riverfest 2026 features fireworks over the river, a carnival, live music, craft and food vendors, and lots of fun kids activities.