The child was transported by emergency medical personnel to a nearby hospital, according to a release from Yellowstone National Park.
A woman was hospitalized after she was gored by a bison in Yellowstone National Park, park officials said.
The derailed cars were carrying hot asphalt and molten sulfur, officials said.
Yellowstone officials warn the public to not approach bison and other wildlife in the park but one woman stood a foot away from one for a selfie.
A Colorado man required medical treatment at a hospital after he was gored by a bull bison at Yellowstone National Park in Wyoming, officials said.
Several thousand cars, trucks and recreational vehicles were backed up in long lines at entrances to Yellowstone National Park as it partially reopened Wednesday morning following record floods that reshaped the park's rivers and canyons, wiped out numerous roads and left some areas famous for their wildlife viewing inaccessible, possibly for months to come.
