Kim Crumbo, 74, and his half-brother Mark O’Neill, 67, have been first reported as “overdue” by a relative final Sunday when they didn’t return from a backcountry journey to Shoshone Lake, park officers stated.
Crews spent 5 days looking on foot, by boat and by helicopter however didn’t discover Crumbo, the information launch stated.
“Crews from the National Park Service’s Submerged Research Center will begin using sonar equipment to detect clues in the water. Park search crews continue to search for Crumbo by foot and boat, with assistance from Grand Teton National Park’s interagency helicopter,” the National Park Service stated within the information launch.
Recovery efforts are anticipated to proceed over the subsequent a number of days, park officers stated.
Both males are National Park Service retirees and Crumbo is a former Navy Seal, the park service stated. O’Neill was from Chimacum, Washington, and Crumbo from Ogden, Utah.