 North of its roundabout at MD 464 (Point of Rocks Road), US 15 has only two intersections, with Basford Road and Mountville Road, before passing under Elmer Derr Road and reaching a partial interchange with US 340 (Jefferson National Pike) east of Jefferson.There is no direct access from northbound US 15 to westbound US 340 or from eastbound US 340 to southbound US 15; that access is provided by using the Mt.Zion Road interchange to get turned around.