Mastodon State Historic Site
Mastodon State Historic Site preserves one of Missouri’s most important Ice Age fossil discoveries, where mastodon bones and early human artifacts were found together. Visitors can explore exhibits, a museum, and scenic grounds that interpret prehistoric life and the site’s archaeological significance.
Free
Visiting with Dogs
Dogs allowed on leashes no longer than 6 feet. Owners must clean up after pets and keep them under control.
Visitor Tips & Reviews
What Visitors Say
Visitors love Mastodon State Historic Site for its fascinating Ice Age fossils, easy trails, family-friendly museum exhibits, and peaceful natural setting with educational, hands-on experiences.
Tips from Visitors
- Wear sturdy shoes for uneven trails and historic grounds.
- Bring water, especially during hot Missouri summer visits.
- Check site hours before arriving; schedules can change seasonally.
- Use insect repellent for comfort on wooded outdoor areas.
- Allow extra time to explore exhibits and interpretive signs.
Best Time to Visit
The best time to visit Mastodon State Historic Site is spring or fall, when mild weather makes it easy to enjoy the museum grounds and outdoor interpretation. These seasons are especially pleasant for family visits and school-group outings.
Amenities
Nearby Attractions
Explore these attractions near Mastodon State Historic Site:
- Jefferson Barracks Historic ParkA historic military site with museums, monuments, and open grounds along the Mississippi River.20 miles away
- Missouri Civil War MuseumA regional museum in nearby St. Louis that interprets Civil War history through exhibits and artifacts.22 miles away
- Laumeier Sculpture ParkAn outdoor sculpture park offering large-scale art installations and walking paths in the St. Louis area.24 miles away
Things to Do at Mastodon State Historic Site
Camping at Mastodon State Historic Site
Camping is not available at Mastodon State Historic Site. Nearby state parks may offer tent, RV, and cabin camping.
Hiking Trails
Mastodon State Historic Site offers easy, family-friendly day hiking with well-marked trails through woods, open areas, and around the historic dig site. Hikers often enjoy the peaceful setting, wildlife sightings, and educational stops along the way. Trails are generally short and manageable, making this a good choice for a relaxed walk rather than a strenuous hike.
Mastodon Trail
EasyA short interpretive loop that explores the site’s natural areas and historic features, with access to the visitor center and fossil-related exhibits.
Prairie Trail
EasyAn easy walk through restored prairie habitat, offering a quiet nature-focused hike with seasonal wildflowers and birdwatching.
Woodland Trail
EasyA gentle trail through shaded woodland areas, good for a relaxed hike and observing local plants and wildlife.
Historic Site Connector Trail
EasyA short connector route linking key areas of the historic site, suitable for combining with other trails for a longer visit.
Directions
From I-55, take Exit 186 for Imperial Main Street/Highway 21. Follow Highway 21 south, then turn onto Charles J. Becker Drive and follow signs to the site entrance.
Contact & Info
Frequently Asked Questions
What is there to do at Mastodon State Historic Site?
Visitors usually come for the museum exhibits, the mastodon fossil displays, and the walking trails. Many reviews mention it as a good place for a short, educational stop, especially for families and anyone interested in Ice Age history.
How long does a visit usually take?
Most people spend about 1 to 2 hours here, though you can stay longer if you walk the trails or take extra time in the museum. Reviews often describe it as a relaxed half-day or quick stop.
Is Mastodon State Historic Site good for kids?
Yes. Families often say kids enjoy the fossil exhibits and the chance to learn about mastodons in an easy-to-understand way. The site is generally seen as educational, manageable, and a nice outing for children.
Are the trails easy to walk?
Most visitors describe the trails as easy and family-friendly. They are a popular choice for a short nature walk. As with any outdoor site, conditions can vary after rain, so comfortable shoes are a good idea.
Is there an admission fee?
Admission is often described as free or very low-cost, but policies can change. Visitors commonly mention it as an affordable attraction, making it a popular choice for a budget-friendly day trip.
What makes this site worth visiting?
People often say the main draw is seeing real mastodon history in a place where the fossils were found. Reviews frequently praise the mix of science, history, and outdoor space, especially for a quiet, interesting visit.
Don’t Forget the Essentials
Essential camping & hiking gear we recommend to make your park trip easier and more comfortable.
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