The route runs from the Maryland border in the Lewisville section of Elk Township, where it continues as Maryland Route 213, north to Pennsylvania Route 82 in the Doe Run section of West Marlborough Township.
Maryland | University of Maryland | Bethesda, Maryland | Annapolis, Maryland | Silver Spring, Maryland | Montgomery County, Maryland | U.S. Route 66 | U.S. Route 1 | Cumberland, Maryland | Governor of Maryland | Frederick, Maryland | Maryland House of Delegates | Hagerstown, Maryland | U.S. Route 6 | U.S. Route 101 | Route 66 | Emmitsburg, Maryland | Columbia, Maryland | Westminster, Maryland | U.S. Route 30 | New Jersey Route 4 | European route E65 | U.S. Route 40 | Laurel, Maryland | Howard County, Maryland | Havre de Grace, Maryland | California State Route 1 | University of Maryland, Baltimore | Bowie, Maryland | U.S. Route 1 in Maine |