... pop- ulation 3,443 ) , W central NORTH DAKOTA ; MANNING ; 47 ° 21′N 102 ° 37 ... D.C. , 4 mi / 6 km NE of FAIRFAX ; 38 ° 53′N 77 ° 13'W . Stop on Orange line of Washington Metro ... LOCK HAVEN , on West Branch of SUSQUEHANNA RIVER ; 41 ° 08′N ...