National parks hope visitors comply with virus measures

Cheyenne, Wyo. • A man pets a wild bison on the head. Rescuers pull a treasure seeker from a snowy canyon. A woman taking photos stumbles into scalding water.Visitors to Yellowstone National Park often leave common sense and situational awareness at home, as those examples in the past year show.Now, as Yellowstone and other national parks end a two-month shutdown due to the coronavirus, park officials ask visitors to take simple precautions: wash hands, keep a safe distance apart, wear prot