Between June 24–26, 1863, the Battle of Hoover's Gap was fought around Beechgrove. The Beechgrove Confederate Cemetery now occupies a portion of the battlefield, on top of a hill overlooking present-day I-24. It contains 56 graves; 52 are of unknown soldiers.
(Beechgrove, Tennessee, was named "Beech Grove," until zip codes were assigned to U.S. Post Offices. At that time the post office named "Beech Grove" in another county was given its zip code before the Coffee County location received its code; thus to avoid confusion among postal users, and the Postal system itself, Beech Grove (Coffee County), Tennessee was changed, officially, to "Beechgrove." Locals living there protested to postal authorities, but to no avail. The name "stuck," so to speak.)