I Corps' final Dauntless objectives lay in the zones of the US 25th and 24th Infantry Divisions stretching north of the Utah Line (which arched 11 miles above Kansas between the Imjin River and the eastern slopes of Kungmang Mountain, its trace resting on the prominent Kumhak, Kwangdok and Paegun mountain masses) to Ch'orwon and Kumhwa at the base of the Iron Triangle.