Aggressive grizzlies have prompted officials in Denali National Park and Preserve to close trails and parking lots.
The Savage Alpine Trail, the Savage River Loop Trail and both Savage River parking lots were closed indefinitely as park wildlife technicians tried to teach a bear in the area to avoid approaching humans. The park has also stopped issuing backcountry permits for the Savage River area.
The small grizzly early in the week charged vehicles near the Primrose area and chased visitors near Savage River along the Denali Park Road.
The same bear also charged hikers on the Savage Alpine Trail on Wednesday and consumed two candy bars and bottles of soda from a daypack one hiker threw as a distraction.
Dave Schirokauer, resources and science team leader for Denali National Park, called the situation "very serious" because the bear was rewarded for aggressive behavior and may have learned to associate humans with food.









A grizzly sow and an older cub walk down the road in Denali National Park in May. (Bob Hallinen / Alaska Dispatch News)
A grizzly sow and an older cub walk down the road in Denali National Park in May. (Bob Hallinen / Alaska Dispatch News)
Wildlife technicians hope to find the bear and lure it into a similar scenario, but instead of providing treats, they plan to fire paint balls, beanbags and rubber bullets at the animal to make it wary of people.