Austin King, a 22-year-old male, was last heard from on Tuesday, September 17th, when he contacted friends and family from the summit of Eagle Peak, located in the remote southeast corner of Yellowstone National Park. At the time, he was wearing glasses, a black sweatshirt, and gray pants. King, an employee working at a park concession, was reported overdue to the Yellowstone Interagency Communications Center on Friday, September 20th, after he failed to arrive for his scheduled boat pickup near Yellowstone Lake's Southeast Arm. He had been on a planned 7-day backcountry trip to summit Eagle Peak.