Following the incident, authorities closed the Signal Mountain Summit Road and Signal Mountain Trail to all public entry. Grand Teton National Park is home to both black and grizzly bears.

MOOSE, Wyo. — A grizzly bear attacked and seriously injured a man in western Wyoming’s Grand Teton National Park, prompting closure of a mountain there Monday. The grizzly was one of two that ...

MOOSE, Wyo. — A grizzly bear attacked and seriously injured a man in western Wyoming's Grand Teton National Park, prompting closure of a mountain there Monday. The grizzly was one of two that ...

A mountain was closed in western Wyoming's Grand Teton National Park after a grizzly bear attacked and injured a man from Massachusetts; he was taken to a nearby hospital.

MISSOULA, Mont. (KECI) — A 35-year-old Massachusetts man was seriously hurt when he was attacked by a grizzly bear at Grand Teton National Park in Wyoming, according to wildlife officials.

Park officials closed a trail and the road to an overlook atop the 7,700-foot mountain. The attack happened as Grand Teton and nearby Yellowstone National Park begin their busy summer tourist season.

MOOSE, Wyo. (AP) — A grizzly bear attacked and seriously injured a man in western Wyoming's Grand Teton National Park, prompting closure of a mountain there Monday. The grizzly was one of two ...

The National Parks Service has closed Wyoming 's Grand Teton National Park Monday after they say a grizzly bear attacked and seriously injured a man in the mountain. The grizzly was one of two ...