Jonesboro Depot Jonesboro's stone depot, built in 1867 for the Macon & Western Railroad, now houses a welcome center and the Road To Tara Museum, an exhibit of Civil War and Gone With The Wind items. (104 N. Main St., Jonesboro). Jonesboro, a city of 3,800 in south metro Atlanta, is the county seat of Clayton County.   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home