06/29/2014 10:46 AM EDT
This morning, early risers found the the Yellowstone River Valley inundated by fog where it passes along the Blacktail Deer Plateau in Yellowstone National Park.
Photo: National Park Service
This morning, early risers found the the Yellowstone River Valley inundated by fog where it passes along the Blacktail Deer Plateau in Yellowstone National Park.
Photo: National Park Service