Yellowstone's Quiet Power

Sitting on a tripod, a Global Positioning System (GPS) antenna, powered by portable solar-energy panels, measures gradual movements of Earth's crust in Hot Springs Basin, Yellowstone National Park, Wyoming. University of Utah researchers have published 17 years worth of GPS data showing how a giant plume of hot and molten rock beneath Yellowstone shapes the landscape of the park and a wide area around it. Credit: Jamie Farrell, University of Utah