Atlanta, Stone Mountain & Lithonia Railway, 1956 Map shows Atlanta, Stone Mountain & Lithonia Railway tracks in green. Shown in yellow is the Georgia Railroad's main line and its branch to the quarry at Rock Chapel (see "Tailings Pond" in top right corner). (From USGS Conyers, GA quadrangle, 1956.)   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home