(This post originally published in November 2011)
As we drove through Hayden Valley (Yellowstone National Park) in the early morning, we were able to catch bison crossing the Yellowstone River:
Seeing the bison in early fall is quite different than in the peak of winter. When I was in Yellowstone this past February, the mood was much more sullen as the bison struggled to survive the harsh conditions of Yellowstone in winter!