The maximum speed in the park is 45. You're on vacation. Slow down and enjoy it. Thom and I grew tired of having California freeway drivers riding our rear tires through the park.
Don't get to close to the bison. They recommend 25 yards. On Thursday a 12 year old boy from Pennsylvania got tossed by a bull. The family was posing one or two FEET from the bull even though other park visitors told them to get away.
Enough soap box dissertation, I'll start posting pictures.