PITKIN COUNTY, Colo. -- Crews are continuing to search for a missing solo climber in the Maroon Bells Wilderness, the Pitkin County Sheriff's Office said.
David Cook of Albuquerque, N.M., is a former Marine who authorities said has a lot of backcountry experience. A woman called rescuers on Tuesday night when she had not heard from him.
The sheriff's office said Cook planned to summit Pyramid Peak on Monday and Maroon and North Maroon peaks on Tuesday.
Cook's car was found at the Maroon Bells entrance station with a ticket indicating he arrived later than he had planned to be in the area so a search did not begin until Thursday morning, with two helicopters launched to help find him.
The sheriff's office said a team of five climbers from Mountain Rescue Aspen are looking for Cook in the West Maroon Creek Valley.
Search crews were slowed over the weekend by high winds, blowing snow and low visibility.
Friends of Cook and his family have taken to social media in an attempt to find him.