Jon Olson, a Black Hills native, gives a behind the scenes tour of The Mammoth Site in Hot Springs, South Dakota is the worlds largest mammoth research facility where you can tour an active paleontological dig site and view Ice Age fossils exhibited as they are found. Travel back to the time when Ice Age mammoth, camel, and giant short-faced bear roamed the Great Plains of North America. Imagine a sudden collapse of a 60 foot deep karst sinkhole. Bubbling from the bottom, a warm spring percolates through the layers of limestone, now creating a large steep-sided pond. Stand on the edge of discovery and walk where mammoths, bears, American lions and other Ice Age animals walked.