Five snowboarders were found dead Saturday after being buried in snow on a high mountain pass in Colorado’s White River National Forest, after they triggered an avalanche around 1 PM.

The sheriff’s office has identified the five snowboarders, all in their 30’s, as Christopher Peters, 32, from Lakewood; Joseph Timlin, 32, from Gypsum; Ryan Novack, 33, from Boulder; Ian Lanphere, 36, from Crested Butte; and Rick Gaukel, 33, from Estes Park.

A sixth member of the group survived by digging himself out of the snow. He hiked a few hundred yards to a road and flagged down workers with the Colorado Department of Transportation.

The Colorado Alpine Rescue Team said it was the state’s deadliest avalanche since 1962.