Chancellorsville and the Wilderness.
Holy shit, those guys were tough. At my physical peak I might have been able to march as far as they did every day, but probably not fight at the end of it. Oh, and they did it half-starved, sick, barefoot, and knowing that if they were wounded the bullet would be dug out or the limb would be sawed off without anesthesia.
Read one marker that described how the wounded were left on the field without water, medicine, or shelter from the sun and rain. It took some of them more than a week to die.
There's a cedar grove where Lee and Jackson had their last bivouac. I'd like to sneak in there and spend a night just to commune with the ghosts.
Met an old-timer who told me that when he was a kid there were still minie-balls and other artifacts laying around on the surface. I wonder how much is buried under subdivisions and strip malls now.