The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 2: Two Years of Grim War.
Francis Trevelyan Miller, Ed.

Orchard Knob the crest of Missionary Ridge was occupied by Federal troops. Sheridan did not stop here. He went down the eastern slope, driving all in front of him toward Chickamauga Creek. On a more easterly ridge he rested until midnight, when he advanced to the creek and took many prisoners and stores.

While the Army of the Cumberland accomplished these things, Hooker was advancing his divisions at charging pace from the south. Cruft was on the crest, Osterhaus in the eastern valley, and Geary in the western-all within easy supporting distance. Before Cruft's onrush the left wing of Bragg's army was scattered in all directions from the ridge. Many ran down the eastern slope into Osterhaus' column and the very few who chose a way of flight to the west, were captured by Geary. The bulk of them, however, fell back from trench to trench upon the crest until finally, as the sun was sinking, they found themselves surrounded by Johnson's division of the Army of the Cumberland. Such was the fate of Stewart's division; only a small portion of it got away.

On the Confederate right Hardee held his own against Sherman, but with the left and center routed and in rapid flight Bragg realized the day was lost. He could do nothing but cover Breckinridge's retreat as best he might and order Hardee to retire across Chickamauga Creek.

Thus ended the battle of Chattanooga. Bragg's army had been wholly defeated, and, after being pursued for some days, it found a resting place at Dalton among the mountains of Georgia. The Federal victory was the result of a campaign carefully planned by Generals Halleck and Grant and ably carried out by the efforts of the subordinate generals.

The losses in killed and wounded sustained by Grant were over fifty-eight hundred and those of Bragg about sixty-six hundred, four thousand being prisoners. But the advantage of the great position had been forever wrested from the Southern army.