YELLOWSTONE NATIONAL PARK — In 2022 traffic-related incidents remained to be the most common cause of injury or death in Yellowstone National Park (YNP).

According to YNP, the park saw a total of 56 known vehicle collisions with large mammals, which included 20 mule deer, 14 elk, 10 bison and six black bears. YNP wants visitors to ensure their safety and the safety of the park’s wildlife by following these guidelines:

  • Drive cautiously and watch for animals. The park has hazards on the road you are not used to at home.
  • Follow the speed limit. The speed limit in Yellowstone is 45 mph (73 kph) unless posted otherwise.
  • Use extra caution at night. Animal fur absorbs light, making them very difficult to see on roads at night, even while using bright headlights. Slow down when venturing into the park after dark
  • Never park in the road or block traffic. If you need to stop or pull over for any reason, use a pullout and ensure all four vehicle tires are to the right of the white line.

For details on road closures and up-to-date conditions in the park, check out the park roads page at