Kennon Road, also known as Rosario–Baguio Road, is a two lane 33.53-kilometer (20.83 mi) roadway in Benguet province in the Philippines connecting the mountain city of Baguio in Benguet to the lowland town of Rosario in La Union province. The project begun in 1903 and opened for travel on January 29, 1905. Originally called Benguet Road, it was later renamed in honor of its builder, Col. Lyman Walter Vere Kennon of the U.S. Army Corps of Engineers. It is the second oldest road that leads to Baguio, after Quirino Highway, and the shortest route to Baguio for travelers from Manila and provinces in central and southern Luzon.