McDonough Depot There's a train station under here. Southern Railway's former McDonough depot was used by a local lumber business until recently when it was vacated and boarded up. McDonough, the county seat of Henry County, is a city of 22,600 located about 30 miles south of Atlanta. (May 2014 photos above; older photos below) An early twentieth-century photo indicates that that the building once had a tile roof and a dormer above the bay window. Mural in downtown McDonough.   RailGa.com. Georgia's Railroad History & Heritage. © Steve Storey Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home