We saw bison in several places. At mud volcano they were right next to the trail. I had to keep my boys calm they were so excited to be that close and still be safe. We had one in the road that slowed traffic in both directions, but walked right by our window. Magnificent creatures.
This is a great destination to check out. Lots of hiking, waterfalls, and RV accessible campgrounds. It’s easy to drive past it or through it without stopping. Find the time or book a stay, you won’t be disappointed!