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Mastodon State Historic Site, Paleontological excavation site in Imperial, Missouri, United States

Mastodon State Historic Site is an excavation area in Jefferson County containing ice age deposits. The grounds include a large bone bed with remains of various prehistoric creatures and a museum with exhibits.

The site gained attention when a Clovis culture spear point was found in 1979, showing that people and mastodons encountered each other. This discovery pushed back the known timeline of human presence in North America.

The museum displays replicas of animal bones and tools that show how early hunters lived in this area. Visitors can see how closely those ancient people were connected to the large creatures around them.

The grounds offer several hiking trails of different lengths and rest areas with picnic tables. Visitors should wear sturdy shoes and bring plenty of water, especially on warm days.

The bone deposit here ranks among the largest ice age sites in the United States and holds one of the richest collections of prehistoric bones. Researchers continue to make new discoveries that deepen our understanding of these ancient animals.

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Location
Inception
1976
GPS coordinates
38.37917,-90.39472
Latest update
August 23, 2026 16:48
Natural wonders and historic sites of Missouri

Missouri offers a mix of geological formations and historic sites that show the natural resources and industrial past of the state. The landscape includes massive granite boulders, deep limestone caves, and clear springs that bubble up from the ground. Parks and conservation areas preserve forests,...

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« Mastodon State Historic Site - Paleontological excavation site in Imperial, Missouri, United States » is provided by Around Us (aroundus.com). Images and texts are derived from Wikimedia project under a Creative Commons license. You are allowed to copy, distribute, and modify copies of this page, under the conditions set by the license, as long as this note is clearly visible.

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