 The eastern terminus is at Interstate 95 (I-95) in Bensalem Township, Bucks County.The route heads through a mix of suburban and rural areas of northern Montgomery County as a two-lane road, passing through Harleysville, before coming to an interchange with I-476 (Pennsylvania Turnpike Northeast Extension) in Towamencin Township.From this point, PA 63 continues through predominantly suburban areas of eastern Montgomery County as a two- to four-lane road, passing through Lansdale, Maple Glen, Willow Grove, and Huntingdon Valley.