Here's a link to a more specific area of the park I featured in a later thread that you might also find helpful:
Tour Stop 4 at Kennesaw Mountain National Battlefield lies in the heart of the park and is the most isolated and evocative part of the battlefield. This was the scene of the most desperate fighting during the Union assault of June 27, 1864 on the Confederate position at Kennesaw. The...
civilwartalk.com
The Cheatham Hill (Dead Angle) area of the park where our ancestors' units fought (mine was in Pat Cleburne's adjacent division) is actually like what you expect at a National Battlefield: a relatively short but isolated from traffic park road paralleling the Confederate lines, no annoying modern structures cluttering up the vistas, several cannon, state monuments, and historical markers, etc., etc.