CAMERA  IPHONE 6S  EDITING  PHOTOSHOP

Volcano, the campy 1997 disaster movie starring Tommy Lee Jones, is a favorite of my wife Alisa. She digs geology. So she felt right at home exploring Yellowstone National Park, which sits atop a volcanic caldera and supervolcano. We had only two days here but got to visit several thermal attractions. It was a landscape of extremes. The ground was steaming hot on a 32-degree day. We drove through snow flurries. Parts of Lake Yellowstone were still frozen in mid-May. Our favorite hot spots were Old Faithful geyser and Mammoth Hot Springs, where bison and elk mingle among tourists. The Mud Volcano was cool. I mean hot. The green ooze below is a shallow thermal pool.