The incident happened around 6 p.m. Saturday along the lower Palisades Lake which is north of Palisades Reservoir.

The area where the shooting occurred is in very rough terrain and is not accessible via car or truck.

A Bonneville County sheriff's deputy riding a motorcycle was the first on the scene followed by Bonneville County Search and Rescue personnel on horseback, authorities said.

The Idaho Falls and Swan Valley fire departments and Bureau of Land Management Rangers also responded.

The girl was stabilized and then transported via wheeled stretcher and horseback the five miles out of the backcountry to the trailhead, from where she was transported via ambulance to Eastern Idaho Regional Medical Center in Idaho Falls, authorities said.

Further details on the shooting have not yet been provided but the Sheriff's Office said the incident was definitely an accident.

The girl's name has not been released.