The following is a news release from Grand Teton National Park Teton Interagency Dispatch Center received an emergency call at approximately 12 p.m. today, Monday, February 22, about a skier involved in an avalanche in the Broken Thumb Couloir on the peak known as 25 Short in Grand Teton National Park. Park rangers, Teton County Search and Rescue members, and Bridger-Teton National Forest personnel jointly responded to the incident. A party of three local residents departed from the Taggart Lake Trailhead this morning, with an intent to ski the Broken Thumb Couloir. The party was skiing one at a time in the upper part of the couloir. Matthew Brien, a 33-year-old Jackson, Wyoming resident, was leading the group, entering the narrow area of the couloir above the rappels when an avalanche occurred.