Yellowstone National Park tourist John Gleason moves in on a large bull elk as two of his children and two children of friends follow the Walla Walla, Wash., man.
Yellowstone National Park tourist John Gleason moves in on a large bull elk as two of his children and two children of friends follow the Walla Walla, Wash., man. Matthew Brown AP
Yellowstone National Park tourist John Gleason moves in on a large bull elk as two of his children and two children of friends follow the Walla Walla, Wash., man. Matthew Brown AP

Visitor misbehavior abounds as U.S. parks agency turns 100

August 28, 2016 11:31 PM