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Archaeological discoveries, prehistoric exhibits, and scenic trails preserve evidence of ancient mastodon hunters and Ice Age wildlife that once inhabited the region.
Museum: Wednesday through Sunday, 10am to 4pm
Closed Monday and Tuesday
Museum open year-round
How to Get There
From Festus (8 mi): Take I-55 north toward Imperial, exit onto Imperial Main Street, then follow local roads and park signs to Charles J. Becker Drive and the historic site entrance.
Overview
The Mastodon State Historic Site protects one of North America's most important archaeological locations, where scientists uncovered evidence showing that prehistoric people lived alongside and hunted mastodons more than 10,000 years ago. Excavations in what is now known as the Kimmswick Bone Bed revealed mastodon remains associated with human-made stone tools, fundamentally advancing the understanding of Ice Age life in the Mississippi River Valley. Today, museum exhibits bring these discoveries to life through fossils, artifacts, interpretive displays, and educational programs that explore the relationship between early people and the giant animals that once roamed the region.
Beyond its archaeological significance, the site encompasses beautiful natural landscapes along the banks of the Mississippi River. Hiking trails wind through forests, wetlands, and restored prairie habitat, offering opportunities to observe wildlife while learning about the area's environmental history. The combination of scientific discovery, natural beauty, and engaging exhibits makes the historic site a unique destination where visitors can explore both the distant prehistoric past and the modern ecosystems that have developed over thousands of years.
Things to Do
Visit the Mastodon Museum
Mastodon State Historic Site is home to an award-winning museum that showcases Ice Age fossils, archaeological discoveries, and exhibits about the ancient mastodons that once roamed the region. Visitors can learn about one of the most significant prehistoric sites in North America and the evidence of early humans who hunted these animals.
Explore the Archaeological Site
The park preserves the Kimmswick Bone Bed, where mastodon bones and stone tools were discovered together, providing important evidence of interactions between prehistoric humans and Ice Age animals. Interpretive displays explain the significance of these discoveries and the site's role in archaeological research.
Enjoy Hiking and Nature Observation
The park's trails wind through forests, wetlands, and along the Rock Creek valley, offering opportunities for wildlife viewing, birdwatching, photography, and exploring the natural landscapes that helped preserve these important fossil deposits.
Top Trails
Spring Branch Trail
Length: Approximately 2.0 miles loop
Elevation Gain: Approximately 200 feet
Difficulty: Easy to Moderate
This scenic trail passes through wooded areas and stream corridors while providing opportunities to observe native plants and wildlife. Interpretive signs along portions of the route help explain the site's natural and cultural history.
Limestone Hill Trail
Length: Approximately 1.8 miles loop
Elevation Gain: Approximately 250 feet
Difficulty: Moderate
The Limestone Hill Trail traverses upland forests and rocky terrain, offering views of the surrounding landscape and access to some of the park's quieter natural areas.
Sources: Missouri State Parks official Mastodon State Historic Site information, including the Mastodon Museum, Kimmswick Bone Bed archaeological site, Ice Age exhibits, hiking trails, and visitor amenities. https://mostateparks.com/park/mastodon-state-historic-site Additional fossil, archaeological, and trail information verified through Missouri State Parks interpretive resources and site guides. https://mostateparks.com/park/mastodon-state-historic-site/trails
This article uses material from the Wikipedia articles and official tourism pages for the Mastodon State Historic Site, which are released under the Creative Commons Attribution-Share-Alike License 3.0.