Purpose Nothing put a damper on uniformitarianism like the Mount St. Helens eruption did on May 18, 1980. Prior to this eruption, strict uniformitarianism...

by Tim Clarey, Ph.D., and Brian Thomas, Ph.D.* Just south of Yellowstone National Park lies one of the most picturesque mountain ranges in the western...

by Tim Clarey, Ph.D., and James J. S. Johnson, J.D., Th.D.* The deepest and arguably most spectacular lake in the United States is located inside...