It’s getting warmer, which means spending more time outside and hopefully exploring national parks. If visiting Yellowstone National Park’s iconic bison (Bison bison), Badlands National Park in South Dakota, Antelope State Park in Utah, or any other place where North America’s largest land mammals roam is on your spring and summer to-do list, here are some safety tips to keep in mind. TOURIST APPROACH HUGE BISON IN YELLOWSTONE NATIONAL PARKIf you are driving:Stay at least 25 yards (roughly 75 feet away at all times. That is about the length of two school buses or enough distance where your thumb can fully cover up the bison when you close one eye. Adventure safelyIf you spot a bison on or near your trail while hiking, you have two good options.