The first phase of the Battle of Chattanooga. Grant, now in command of all armies in the west sent Hooker to take Confederate outer defences overlooking the town on Lookout Mountain.

He sent 3 divisions scrambling up the rocky slopes through the fog which later caused the battle to be known as the "Battle Above the Clouds". The 3 brigades of defenders were overwhelmed and fell back, by evening being driven back to the main positions on Missionary Ridge. Casualties were light, but the sign of a huge Union flag being unfurled at the top of the mountain the following morning dented further the moral of Bragg's Confederates for the battle to come.

Lookout Mountain, 4 miles southeast of Chattanooga, Tenessee, USA (USA)