Map of I-99 interstate highway via Pennsylvania, New York with interchange exit number

Map of 99 interstate highway via Pennsylvania, New York

List of federal interstate roads by number

Map interstate highway 99 route between cities Bellefonte, State College, Altoona, Bedford

Interstate highway I-99 connects the cities of states: Pennsylvania, New York. Detailed map of interstate route I99 with interchange and exit numbers. Interstate 99 passes near several major cities:Bellefonte, State College, Altoona, Bedford.