Mount Owen, a 12,933-foot summit in Wyoming’s Teton Range within Grand Teton National Park, is the range’s second highest peak and part of the rugged Cathedral Group. Named for William O. Owen, organizer of the first documented ascent of the Grand Teton in 1898, it was not successfully climbed until 1930 after failed attempts in 1927 and 1928. Its steep, dramatic shape reflects the Tetons’ geologic history as the youngest range in the Rocky Mountains, rising about 9 million years ago and later sharpened by repeated glaciation. With Valhalla Canyon on its western side and technically demanding climbing routes, it stands as one of the park’s notable high summits.