The Army of Tennessee took up positions below the Elk River, but Hardee and Polk convinced Bragg to move farther south, to the town of Cowan. Steven Woodworth wrote that "The resolute and well-conceived Union advance and the constant carping and noncooperation of his generals seemed to have broken Bragg down physically and emotionally" and he suffered from a collection of physical ailments, including a painful case of boils that prevented him from mounting his horse to survey the battle lines. The Cowan position was not well defensible and the army remained there only until the evening of July 2. Without consulting his corps commanders, on July 3 Bragg ordered a retreat to Chattanooga. The army crossed the Tennessee River on July 4; a cavalry pursuit under Phil Sheridan was not successful in trapping the rear guard of Bragg's army before they crossed the river. All the Confederate units had encamped near Lookout Mountain by July 7.