Doyle, I forgot to mention that Ken Noe's book is definitely one you'll want to read. With your knowledge of tactics and terrain, you're going to love the detail with which Mr. Noe describes this highly confusing battle. A dominant factor in the whole affair was the freakish combination of weather and terrain that kept the sound of a major engagement from reaching the ears of Union General Buell. Frantic staff officers kept coming to Buell's headquarters with reports that one of his corps was in a desperate fight for its life, but Buell couldn't hear any sounds of battle, so he refused to believe that a battle was taking place. He enjoyed a leisurely meal, and retired to his cot to do some light reading, while his men were fighting and dying in droves. Unbelievable.