On Thursday, crews set out to recover the body of an Estes Park man who apparently died in an avalance at Rocky Mountain National Park earlier this week. The body was discovered Tuesday in the Upper Fay Lakes drainage on the north slope of Ypsilon Mountain. His climbing partner survived and was taken to a hospital. Here’s the National Parks Service account of what happened:

David Laurienti, 43, is presumed dead from injuries believed to be sustained in a fall, likely occurring in an avalanche. Search efforts began March 19 for Laurienti and Lisa Foster, two overdue climbers from Estes Park. At around 2:45 p.m. park rangers found Foster, 45, in the upper Fay Lakes basin approximately 6 miles from the Lawn Lake Trailhead. Ms. Foster and Mr. Laurienti had been caught in an avalanche at approximately 6 p.m. on Sunday, March 17, when descending from the north side of Blitzen Ridge on the 13,514 foot Ypsilon Mountain. Foster suffered numerous injuries. Park rangers provided her with assistance, medical care and evacuated her via toboggan from Ypsilon Lake, which is roughly 4.5 miles from the Lawn Lake Trailhead Specific information on her injuries will not be released. Over 32 park rescuers were involved in in the efforts plus six members of Larimer County Search and Rescue.

Blitzen Ridge on Ypsilon Mountain is a challenging mountaineering route that includes sections of technical rock, often made more difficult in winter conditions. Recent snow and winds have contributed to what the Colorado Avalanche Information Center forecasted as considerable avalanche conditions in this area since Saturday.