In one of his rare failures in the Atlanta Campaign, General William Tecumseh Sherman lost approximately 2,000 to 3,000 men to Confederate General Joseph Johnston’s forces who were in prepared defenses at Kennesaw Mountain (actually Big Kennesaw and Little Kennesaw) just north of Marietta, Georgia. Although it was a costly defeat for the Union forces, it was not long until they were on the march again and at the gates of Atlanta.
Check out the Kennesaw National Military Park. There are some good maps there by Larry Knight (RIP). There is even a trail map of the battlefield, if you are inclined to take a hike. Don’t be put off by the “Calorie Counter” title on the hiking map. Take a cheeseburger with you to give the nannies the vapors.