Hanging with the Herd. Day 32. Custer State Park, SD
It took us more than an hour to get through this herd of as many as a thousand bison. (I didn't count but they were everywhere.) They let us know who was in control. Right next to the car they milked and they mounted. They looked in the car window and stayed in the middle of the road. My pictures didn't capture the density or so some of the mating rituals.