JAMB-O-Ree: A Jurassic Armored Mud Ball Unveiling and Celebration
Armored mud balls may sound like science fiction, but these rare formations are real. Massachusetts has some of the best-preserved examples found anywhere. Formed when sticky balls of mud roll through pebbled streambeds, they must be quickly buried to harden into stone. This celebration welcomes an armored mud ball from the Jurassic era to the Great Falls Discovery Center grounds, with Professor of Geology Richard Little sharing how these formations connect us to ancient river systems and local natural history. Why are they almost never preserved, and what makes the ones in the Connecticut River Valley so unique? Come find out and see the landscape in a new light.
Self-Directed Learning
In this short video, geologist Richard Little unpacks the fascinating science and surprising rarity of armored mud balls. These ancient formations are created when sticky mud rolls through pebbly streambeds, then quickly becomes buried and hardened into stone. The video explains how armored mud balls form, why they are almost never preserved, and why the Connecticut River Valley holds some of the finest examples in the world.
Pairing this video with the event helps deepen understanding of geology, natural history, and our regional landscape. Watching at home encourages questions about how landforms are shaped over time and invites closer observation of local rock features. It offers a playful and educational way to connect ancient natural processes to familiar places.

