The campaign lasted from June 15, 1864 until April 2, 1865, claiming 50,000 Union soldiers and 32,000 Confederates. The campaign has been criminally neglected in the study of the Civil War, and this site aims to partially rectify that lack of coverage.
The above is from the site Beyond the Crater
http://www.beyondthecrater.com/
Lt. Col Elkin
Chief Engineer-AoT
“I have come to you from the West, where we have always seen the backs of our enemies. . . . Let us study the probable lines of retreat of our opponents, and leave our own to take care of themselves. Let us look before us, and not behindâ€