Search and rescue officials respond to a report of a missing snowshoer on Feb. 22, 2021, overdue from the day before in Boulder County. 

A 47-year-old woman was rescued Monday after she was missing for more than 24 hours following a snowshoeing trip in Boulder County, the Boulder County Sheriff’s Office said. 

The woman, identified by her sister as Jennifer Cornell, was reported overdue at 9 a.m. Monday, deputies said.

Cornell had left for the trip at 9:30 a.m. Sunday and was expected to return in the afternoon. Her family did not realize she hadn’t returned until the next morning.

Search and rescue crews immediately mobilized and began searching for Cornell.

Cornell had told family that she planned to snowshoe on the Jenny Creek Trail, starting at the Eldora Nordic Center. Crews conducted ground searches on and around the trial, in addition to air patrols.

After eight hours of searching, rescuers found Cornell alive 200 feet off the trail. She was taken to a hospital using a snowmobile and medical helicopter.

She suffered serious injuries from spending the night outside in the cold but she is expected to survive, deputies said.

Cornell's sister, Kim Keenan, told Denver Gazette news partner 9News that Cornell is in "good spirits" and is being treated for frostbite on her hands and feet.

"We are grateful she was found alive," Keenan said. "Thank you to the amazing Boulder County community for their kindness and support.”

More than a dozen agencies participated in the rescue, including the Rocky Mountain Rescue Group, Front Range Rescue Dogs, Boulder Emergency Squad, Eldora Ski Patrol, U.S. Air Force Rescue Coordination Center and Alpine Rescue Team.