To Reach 5676 Marbut Road In Lithonia, Georgia, From Interstate 285 (I-285), Take Exit 43A For U.S. Highway 78 East Toward Snellville/Athens. Continue On U.S. 78 East For Approximately 5 Miles. Take Exit 8 For The Stone Mountain Park Main Entrance. Follow The Exit Ramp To The East Gate Entrance Of Stone Mountain Park. After Entering The Park, Follow The Signs To The Marbut Road Neighborhood. Your Destination Will Be On The Left.