In this photo, the leading elements of the Confederate battleline have emerged from the treeline at the rear of the photo.  The Hardee Battleflag (blue with a white disk) carried by the regiment at the left center identifies these troops as belonging to the division of General Patrick Cleburne
 
It was breath taking to see these lines emerge from the trees as if they had sprung from the ground.  The real Confederate batttleline must have been an awe inspiring sight, extending nearly two and a half miles in length.  It was said that General Schofield, watching the approaching Confederates from a roof top in Franklin, called a small boy to his side and said, " Take a look at this, son, and remember it; you'll never see anything like this again"