Today we returned to Yellowstone and the first thing we saw was around 15 elk all around the fort including the visitors center. Then we began to drive the loop. Along the way we saw lots of bison and 1 bear which was causing some traffic problems. We then went to the Dragon's Mouth and Mud Volcano mud pots. The Dragons Mouth is a big rock with a hole that gushes out steam and boiling mud. We went to Old Faithful and arrived just in time for the eruption and lots of rain. After that we drove to the Grand Prismatic Spring and tried to do it in the pouring rain. But with the rain causing so much steam, we couldn't even see the path we were on so that was less than impressive. On our way out of Yellowstone we saw the Grand Tetons National Park with snowy mountains and lots of fog in front of them due to the rain. Then we drove to our hotel for the night. Tomorrow we are heading towards Dinosaur National Monument and then we will go to Rocky Mountain Park the next day or so.