Measuring the Tetons and Jackson Hole (IMAGE) University of Utah Caption Wyoming's Teton Range looms behind a Global Positioning System (GPS) antenna in Jackson Hole that was part of a 17-year University of Utah study in which GPS devices were used to measure gradual movements of Earth's crust in Grand Teton National Park, Yellowstone National Park and surrounding areas. The study found the Teton Range and Jackson Hole are moving in unexpected directions, complicating efforts to forecast the likelihood of major earthquakes on the Teton fault. Credit Jamie Farrell, University of Utah. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.