MAMMOTH HOT SPRINGS, Wyoming, Sept. 21, 2021 (Gephardt Daily) — Search and rescue crews in Yellowstone National Park are searching for a missing Ogden man after they located the body of his half-brother along the east shore of Shoshone Lake.
Crews located the body of Mark O’Neill, 67, on Monday, said a news release from the National Park Service.
O’Neill, from Chimacum, Washington, and his half-brother, Kim Crumbo, 74, from Ogden, were reported overdue by a family member Sunday from their four-night backcountry trip to Shoshone Lake.
Both O’Neill and Crumbo are National Park Service retirees, and Crumbo is a former Navy Seal.
“On Sunday, Sept. 19, park crews located a vacant campsite with gear on the south side of Shoshone Lake, as well as a canoe, paddle, personal flotation device and other personal belongings on the east shore of the lake,” the news release said. “Crews located the body of O’Neill along the east shore during the morning of Monday, Sept. 20.”
Search and rescue efforts continue with 10 crew members on foot in the area Tuesday to locate Crumbo. A Grand Teton National Park interagency helicopter and crew are also assisting with search efforts.
“This incident remains under investigation,” the statement said. “While we cannot comment further about the specifics of this investigation, we will provide updates when appropriate to do so. We ask the public to maintain distance from any law enforcement personnel, equipment, vehicles and their related activity for the safety of the public in this remote area and to protect the integrity of our work.”
Shoshone Lake, the park’s second-largest lake, is located at the head of the Lewis River southwest of West Thumb. At 8,050 acres, its average year-round temperature is about 48 degrees Fahrenheit. Survival time is estimated to be only 20 to 30 minutes in water of this temperature. Learn more about boating regulations and safety in the park here.
