Stones River - I'd been there in the 80's - and boy, that is shocking to hear how things have gone; pretty sad really.
I'll put in a vote for the Battle of Westport (Missouri), the majority of the battle occured in what is now Kansas City proper. It was the largest battle west of the Mississippi (October 1864), actually the entire campaign took in a good part of the state, including a battle at a ford over the Little Blue River (east of Independence MO), and crossing (iirc) 24 Hwy, which a much neglected and overlooked plaque. Downtown Independence has all sorts of plaques regarding battle lines there -although the climax of the campaign was later at Westport where the Confederate forces sort of got pinched between oncoming Union reinforcements (sent from St Louis I think), and Union units from the west, including large portions of the Kansas State militia which agreed to cross the State lines to join the fight. Westport, itself is virtually on the State line (and is more of a neighborhood district nowadays).
And they got a Half Price Book store there that I miss pretty badly, not to mention the BBQ.
