In September of 2005 I had the rare opportunity to tour Yellowstone Park with the two Park Service Geologists, the State Geologist of Wyoming and 17 other State Geologists. The all-day trip took us through the bright sun, rain, snow, fog and bison. It was an inside look at a place that was once literally hell on earth and may be again.
Some of these images are of the Grand Tetons just outside of Jackson Hole.
© PhotoBama Dennis Lathem