We will put this in the category of - Only in Yellowstone. Bison making their way through the Roosevelt Arch in an orderly fashion earlier this week. 📷: YF / Cindy Shaffer #Yellowstone150 #YellowstoneForever #YNP #Yellowstone #YellowstoneNPS #YellowstoneNationalPark #nationalparks #VisitMontana #ThatsWhy #VisitGardiner #RooseveltArch #bison #NPS