 MD 63 joins MD 68 in a concurrency on Conococheague Street to the south and US 11 on Potomac Street east to Artizan Street, where MD 63 heads north out of town.US 11 veers northeast and heads through a more suburban area of Williamsport.The federal highway leaves the town of Williamsport and becomes state-maintained immediately before expanding to a four-lane divided highway for its partial cloverleaf interchange with I-81 (Maryland Veterans Memorial Highway).