Authorities airlifted an Oregon City woman from Broken Top, a central Oregon peak, over the weekend.

Sarah Rask unintentionally went off trail near the summit of the over 9,000-foot peak, lost her footing and grabbed a large rock that gave way and caused her to fall about 25 feet, according to the Deschutes County Sheriff's Office. The rock, which was about the size of a mini-fridge, rolled over her during the fall, the agency said.

Authorities requested help from the Oregon Army National Guard, which sent a Salem-based Blackhawk helicopter to the mountain's summit, according to the sheriff's office.

A medical team was lowered to Rask — who 911 callers reported was anchored, immobile and near a 60- to 70-foot cliff — and she was lifted from the mountain in a litter.

Rask, 29, was flown to a Bend hospital for treatment of unspecified injuries.

A host of search and rescue volunteers also responded to help, according to the sheriff's office. One volunteer had been recreating on South Sister, a nearby mountain, and traversed to Broken Top.

Dispatchers were first notified of the fall Sunday morning. The 911 callers said the climber suffered significant injuries, according to the sheriff's office.

Broken Top offers a panorama of central Oregon, including views of Mount Bachelor and the Three Sisters.

— Jim Ryan