 MD 194 continues as Francis Scott Key Highway through Keymar , where the north – south and east – west lines of the Maryland Midland Railway intersect . The state highway has a grade crossing of the east – west rail line and intersects <unk> Road , which heads west as MD 77 . In the hamlet of <unk> , MD 194 crosses Big Pipe Creek and intersects <unk> <unk> Road , which heads northwest toward the village of <unk> and Terra <unk> , the birthplace of Francis Scott Key . The state highway passes the historic <unk> Family Farm and Keefer @-@ <unk> Farm on its way to Taneytown . MD 194 , which becomes Frederick Street , crosses a branch of <unk> Creek and passes the <unk> <unk> <unk> House . In the center of the Taneytown Historic District , the state highway intersects MD 140 ( Baltimore Street ) , where MD 194 becomes York Street . After leaving Taneytown , the state highway becomes Francis Scott Key Highway again as it heads through farmland . MD 194 crosses <unk> Creek before reaching its northern terminus at the Pennsylvania state line . The roadway continues north as PA 194 ( Frederick Pike ) toward <unk> and Hanover . 
