Limestone Hill Trail Professional Guide
Detailed Trail Description from our Guidebook
"In the early 1800s the bones of ancient mastodons were found just south of St. Louis at what is now Mastodon State Historic Site. The mastodons were large, tusked mammals, similar in size and appearance to the mammoth and the elephant. The Kimmswick Bone Bed, located at the site, is a Pleistocene Ice Age deposit. The site quickly gained fame among scientists from around the world in 1979 when a 10,000- to 14,000-year-old stone spear point was excavated.
This stone point confirmed the existence of humans, known as the Clovis people, and mastodons during the same time period. These findings suggested that the Clovis people hunted these massive animals and that this may have played a role in these animals becoming extinct near the end of the Ice Age."