Yellowstone and Glacier are both premiere National Parks but quite different from each other. Here’s a quick breakdown of the differences in terms of scenery, wildlife, hiking options, crowd levels, lodging options, food, and more.

Yellowstone NP in September means low crowds and perfect weather. We discovered it was a great time to see herds of bison and experience the tale-end of the rut. Here’s what we saw and learned while there.