After the boat tour, the caverns offer gemstone mining, in which children can prospect for fossils and gemstones. Visitors ...

Discover geodes and fossils along Sugar Creek Nature Trail in Indiana. This scenic hike is perfect for rockhounds, families, ...

The area is also known for its "significant deposit of 450-million-year-old Ordovician fossils and prehistoric Native American mounds, both of which can still be seen today. Summit Lake State Park ...