Really nice read and photos!
Got out to Wyoming for the first time this spring and got to see bison in Yellowstone and the Grand Tetons. It's a sad thing to know the history of our expansion in the States and the toll it took on their population but still a wonderful experience to see that they've persevered. There are many places on my Canada list that need checking off one day as well :)
RE: Elk Island National Park - Bison as far as the eye can see