The Yellowstone Caldera, which formed during a massive volcanic eruption approximately 640,000 years ago, is the centerpiece of America’s first national park, founded in 1872. The volcanic story of Yellowstone, however, begins approximately 16 million years ago and will certainly continue long into the geologic future. Join volcanologist Kirt Kempter on an exploration of the geology of Yellowstone, including the rocks and hydrothermal features that make this national park unique in the world. Google Earth flyovers will help observe the park’s geology from a birds-eye perspective, along with instructive diagrams, maps and field photos. Look out Cooke City, Montana … the hotspot is coming your way!