Here’s why you probably shouldn’t go trail running at Yellowstone National Park

Stay safe at Yellowstone.

Some national parks are perfect for runners. A few of the parks, like Grand Teton and Joshua Tree, even host 5K, half marathon, and marathon events. Yellowstone National Park also offers runners fun races to partake in. These events include races like the Yellowstone Half Marathon and 5K and the Yellowstone 50K Trail Race.

So, if there are official races like these hosted at Yellowstone, why shouldn’t you try tail running through the park? The answer is simple: wildlife. Bears, bison, wolves, and other powerful critters may view your running as a threat or as prey behavior. This isn’t just a potential danger; people have been attacked and killed by animals within Yellowstone. In 2023, a bear attack on one of the park’s trails led to the death of marathon runner Amie Adamson.

While wildlife dangers shouldn’t keep you from enjoying Yellowstone, the park does have a few important safety tips guests should know. Outdoors enthusiasts are probably familiar with most of these rules: don’t feed the animals, keep your distance, and carry bear spray just in case.

A brown bear in the snow at Yellowstone National Park
NPS photo by Neal Herbert

“All of Yellowstone is bear country,” Yellowstone National Park’s website explains, “from the trails in the park’s backcountry to the boardwalks and parking lots around Old Faithful. Your safety cannot be guaranteed, but you can play an active role in protecting yourself and the bears people come here to enjoy.”

Additional safety tips recommended by the park include hiking with a partner or group, making noise, respecting park closures, and not leaving food sources unattended. Oh, and if you’re carrying bear spray, make sure you know how to use it. Remember, it’s not like bug spray. You do not want to spray this stuff on yourself or your gear. Instead, bear spray should be directed at an aggressive bear to keep them away and keep you safe.

Read up on more wildlife safety tips here, or explore some of the sights you can expect to see at Yellowstone here.