Randy Udall, 61, left for a solo hike along Wyoming's Wind River Range, a trail the experienced backpacker has reportedly hiked many times before, over a week ago. Two days after he was expected to return, authorities in Sublette County were notified of his absence.
"Mark is concerned about his brother's whereabouts, and he continues to closely monitor the situation," Udall's office said in a statement. "He and his family hope for the best. (Sen. Udall) has remained in contact with those searching for his brother and, along with his family, has waited and hoped for the best.”